五年级数学(小数四则混合运算)计算题专项练习及答案汇编

五年级数学(小数四则混合运算)计算题专项练习及答案汇编(1)12.5×7.89×0.08=(2)6.4×3×9.4=(3)9.06÷3+3.37=(4)3.78×8.5÷1.7=(5)3.92÷4.9÷0.64=(6)7.65÷0.34×0.22=(7)9.66+2.97÷0.3=(8)3.25÷0.2-8.32=(9)6.48+1.41-4.74=(10)3.32÷0.5+7.44=(11)2.3+4.3+2.05=(12)2.5×4.94×0.4=(13)6.8×4.8-8.93=(14)7.75-0.91-4.06=(15)5.31×37-5.31×7=(16)8.44+5.78×2=(17)6.44-2.51+0.63=(18)8.88÷0.2×0.25=(19)3.85÷1.1×0.16=(20)9.1×1.7÷0.34=(21)3.02+9.14÷0.5=(22)6.36÷0.25-3.48=(23)8.78+4.59÷9=(24)3.63-5.4×0.4=(25)9.54-2.09×4=(26)12.5×9.42×0.8=(27)3.58×26-3.58×6=(28)8.1÷2.5-1.9=(29)3.34×83-3.34×3=(30)2.76+6.73×3=(31)5.25×2.4-6.53=(32)9.57÷0.3-3.01=(33)6.81+8.28-4.34=(34)1.32×4.25+1.32×5.75=(35)8.95×8×1.5=(36)2.51-1.88+4.49=(37)5.19×8+1.84=(38)9.2×1.3+9.2×8.7=(39)7.46-1.26-2.37=(40)1.25×4.06×0.8=(41)4.31×5×7.4=(42)9.27×18-9.27×8=(43)5.17÷0.44+9.33=(44)9.5-5.18-0.34=(45)3.23+7.24-8.49=(46)3.08÷0.7×8.1=(47)3.69÷0.36-5.26=(48)1.25×9.56×4=(49)9.42+6.05+6.93=(50)2.6×0.55-0.4=(51)1.17÷0.65÷2.5=(52)6.92×6.75+6.92×3.25=(53)5.99×8÷0.32=(54)9.42-1.68÷0.48=(55)9.35×2.8÷0.68=(56)7.3×32.7-7.3×2.7=(57)2.54×3-2.44=(58)8.96-1.35×3.6=(59)2.95+3.92×4.5=(60)9+6.21÷0.54=(61)5.3×3.5-6.46=(62)5.5×1.1×2.8=(63)3.4×8.2÷0.68=(64)4.87+3.54-0.39=(65)9×7.8×9.5=(66)8.04÷6÷0.5=(67)4.24×9.5+7.85=(68)2.04-1.08×0.5=(69)6.38+4.42-9.17=(70)4.16×9.25+4.16×0.75=(71)4.2×4.8-8.66=(72)9.75÷1.5×0.48=(73)9.48×5-7.26=(74)1.29÷0.6+7.99=(75)8.96-0.47-8.37=(76)1.75×7.6×0.8=(77)8.28-2.31÷0.55=(78)1.25×6.95×8=(79)5.68-6×0.49=(80)6×9.2÷9.6=(81)7.82×8÷1.7=(82)9.48×9-8.85=(83)9.77-0.38-3.49=(84)9.41-3.63-4.69=(85)5.94÷0.27-7.26=(86)9.09-7.02÷9=(87)7.92×0.75+7.92×9.25=(88)0.9×9.7-6.4=(89)6.66+2.37-8.22=(90)6.66-2.64+4.27=(91)8.19÷0.42÷0.13=(92)2.78×8×0.5=(93)7.49-6.15+8.94=(94)4.6×2.1+0.43=(95)9.9-2.01+2.88=(96)9.54÷5.3÷0.8=(97)5.98+5.75×6.2=(98)9.89-8.88-0.51=(99)8.04×3.5÷2.1=(100)2.95+1.75×7.2=(101)7.47-6.09÷3=(102)3.7×9.5÷1.9=(103)2.76×7÷0.6=(104)0.91+2.35×5.6=(105)0.25×5.87×8=(106)6.09÷0.14÷5.8=(107)9×3.32+9×6.68=(108)7.14+5.54×5=(109)3.21÷0.5-2.81=(110)4.89-0.52×0.25=(111)7.65×3.8÷0.17=(112)6.09÷0.25÷0.21=(113)4.56+0.8×0.9=(114)6.24÷0.12-4.22=(115)5.63+2.43+1.79=(116)6.08×99-6.08×9=(117)5.85÷0.5×2.3=(118)9.36÷1.8÷5=(119)7.9×59.4-7.9×9.4=(120)5.03+1.87+0.38=(121)0.64×2.5×9.3=(122)5.17+9.59-7.83=(123)8.8×1.45+8.8×8.55=(124)5.52×0.75-4.09=(125)2.5×4.1+1.85=(126)8.87-0.25÷2.5=(127)7.12×9-8.77=(128)2.5×2.47×0.4=(129)0.25×8.16×0.04=(130)9.2×7.8-8.24=(131)8.01÷8.9÷0.6=(132)8.9+0.63-2.75=(133)7.59÷0.15×3.8=(134)8.28-0.56×0.5=(135)2.74-1.21÷5.5=(136)5.99×9+8=(137)9.47-8.97÷6.9=(138)6.89×40-6.89×0=(139)3.49-3.76×0.25=(140)3.26-5.92÷8=(141)2.44×6×6.5=(142)9.47+1.29-5.13=(143)3.14-9.2÷8=(144)6.65×9.2+2.53=(145)5.02+1.52+7.92=(146)8.42-5.21-0.6=(147)7.5-4.44÷3.7=(148)0.25×6.09×0.8=(149)6.18-0.35×8.2=(150)3.7+9.63÷0.36=(151)6.69÷0.3-0.67=(152)9.55×7.6+8.09=(153)3.22÷0.56÷0.46=(154)9.2×4.3-6.93=(155)4.52÷0.4-1.68=(156)6.6÷0.16÷0.25=(157)3.81÷0.5-0.12=(158)3.45×4÷0.92=(159)0.32+5.52-0.95=(160)8.05×5.2÷0.5=(161)0.86+3.82+3.2=(162)5.21-2×2.4=(163)9.47÷0.25-5.22=(164)4.4-2.58+4.69=(165)3.94×5.5+3.94×4.5=(166)9.99+1.48÷0.37=(167)0.14×48-0.14×8=(168)8.82÷8.4×4.4=(169)1.8×3.2+6.5=(170)7.33×2+8.93=(171)9.28÷2+9.37=(172)6.35+6.98×7=(173)2.6+3.12÷0.8=(174)2.13×35-2.13×5=(175)3.55-0.74÷3.7=(176)0.7×2.2-0.21=(177)1.48÷0.4+4.35=(178)2×7.08+2×2.92=(179)8.08÷0.2-5.94=(180)4×2.9+7.75=(181)6.16÷0.32×8.4=(182)1.87+1.41-1.21=(183)8.19÷0.18÷0.35=(184)5.25×8×0.29=(185)8.72+7-8.63=(186)7.54÷6.5+1.39=(187)6.67-2.19-3.33=(188)5.81-7.4×0.25=(189)7.5×9.3+7.01=(190)7.26÷0.5+5.73=(191)9.57-0.57×7=(192)5.85÷6.5×4.3=(193)0.72+8.04÷0.67=(194)1.88÷0.25-2.19=(195)4.04+6.41-9.44=(196)6.67+2.75×7.8=(197)0.4×1.5×3.8=(198)2.9+9.14×0.5=(199)6.95×9.6+1.51=(200)9.26+2.08+4.06=(201)4.3×2.7÷0.18=(202)4.34×7.5×2.2=(203)7.64×6.5×8=(204)4.8×8.7÷6=(205)7.09+1.45×9.8=(206)2.53÷0.25÷0.44=(207)9.08×0.25+6.29=(208)4×8.8+4.88=(209)6.55×8+1.56=(210)4.9-3.5×1.1=(211)8.91×6-3.36=(212)2.18+6.61-3.02=(213)7.08+7.05-7.23=(214)4.85-0.84+6.09=(215)1.88+0.57÷1.9=(216)7.63÷0.2-9.75=(217)8.75×2.6-9.31=(218)8.67+2.39-3.97=(219)9.04×3÷0.15=(220)3.22÷0.23+4.71=(221)7.04÷0.11+2.92=(222)9.23÷0.5÷5.2=(223)0.25×3.64×0.8=(224)8.6×3.7×3.5=(225)1.26÷4.2×8.6=(226)2.6×8×5.2=(227)5.98÷0.92-3.99=(228)8.88÷0.25+8.22=(229)4.9×41.8-4.9×1.8=(230)3.18÷0.15÷0.4=(231)3.09÷0.6-2.13=(232)1.4÷0.28÷2.5=(233)2.2÷0.16÷0.2=(234)5×0.72÷7.2=(235)5.56-5.08+9.72=(236)7.6×2.5×0.18=(237)6.05×91.4-6.05×1.4=(238)5.25×6÷0.28=(239)9.84÷0.8×2.3=(240)0.82÷2÷4.1=(241)1.76×4+2.61=(242)7.35+9.3÷3.1=(243)8.44-3.1+3.58=(244)5.03-3.54+4.44=(245)3.5÷7×4=(246)1.14÷0.25+7.65=(247)5.04÷0.42×5.1=(248)4.82+0.54+0.91=(249)8.86-6.44÷9.2=(250)5.94÷0.15-8.38=(251)7.9-2.68+9.87=(252)2.5×4.29×0.08=(253)8.12-3.25+1.46=(254)9-1.42+2.72=(255)2.25×2.4÷0.27=(256)9.91×37-9.91×7=(257)1.75×3.16+1.75×6.84=(258)2.55÷0.68+8.46=(259)9.76÷0.32+6.46=(260)0.7×83.3-0.7×3.3=(261)5.08+1.79×7=(262)9.55+8.17+8.92=(263)5.23×94-5.23×4=(264)2.25×0.52+2.25×9.48=(265)2.5×3.62×8=(266)6×7.5×1.3=(267)6.03+5.3×1.9=(268)5.43÷0.3+7.13=(269)5.2×2.2-5.7=(270)1.2÷0.24×9=(271)5.5×9.6÷2.4=(272)0.2×2.7+3.09=(273)4.46-5.5×0.3=(274)2.5×6.5×0.4=(275)0.25×8.5×0.4=(276)8.03×38-8.03×8=(277)9.18÷1.7-2.66=(278)4.32÷0.9×7.9=(279)9.54÷0.45-6.07=(280)9.65×53-9.65×3=(281)3.96÷0.3+9.06=(282)4.29÷0.33×5.6=(283)8.24+2.35×7.6=(284)3.15×21.6-3.15×1.6=(285)7.05+5.96×7=(286)2.1+4.96-2.85=(287)2.04+7.96-6.69=(288)1.05×0.6÷0.9=(289)1.25×5.05×0.04=(290)1.5×9.7×0.2=(291)4.82+5.48×8.5=(292)12.5×8.52×0.08=(293)7.32÷1.5-1.95=(294)3.25×0.6×4.6=(295)6.13+2.84-2.82=(296)0.11+1.8÷0.18=(297)6.18-0.76-0.11=(298)4.65+9.45×3.6=(299)7.95×6.2+7.95×3.8=(300)4.23÷0.15÷0.24=(301)3.13+7.24-7.29=(302)0.68+3.18÷0.6=(303)1.25×0.73×4=(304)6.4×7.2+6.4×2.8=(305)7.99×3-1.17=(306)5.06-1.16+1.56=(307)9.9×11.8-9.9×1.8=(308)1.68÷0.24÷0.28=(309)9.64-7.06+3.63=(310)8.5×0.76+9.17=(311)8.14-7.67-0.19=(312)2.82+3.44×0.75=(313)6.1-8.14÷3.7=(314)1.25×4.6×8=(315)4.19×67-4.19×7=(316)6.51-8.28÷1.5=(317)7.68-5.01+0.79=(318)4.18+3.82×3.5=(319)3.46×0.5+3.46×9.5=(320)3.36÷1.4÷9.6=(321)8.06+1.67+0.62=(322)4.34-1.63+5.66=(323)3.47+2.38÷0.2=(324)6.82-1.69÷0.52=(325)8.85-3.32×1.5=(326)3.02+6.22×0.5=(327)8.17-1.76×0.25=(328)4.82×5.5-4.35=(329)5.42×2+5.2=(330)2.5×3.7×8=(331)3.79+3.29+8.5=(332)4.4+0.9×2.8=(333)2.7×8.5+5.74=(334)7.48×3.5+7.48×6.5=(335)3.34-0.39-1.64=(336)5.55÷0.25-1.79=(337)9.59-0.35×8.4=(338)5.7×6.9+5.7×3.1=(339)2.69-0.3×1.9=(340)8.62-7.88+5.81=(341)0.13×2×4=(342)3.9÷0.25×8.7=(343)6.28-4.4+1.32=(344)7.45-0.47+3.18=(345)8.5×4.3-3.75=(346)4.57×2+4.5=(347)2.1×3.8×1.5=(348)2.17+4.03×7=(349)0.4×34-0.4×4=(350)5.06-0.06-2.27=(351)1.25×2.24×0.08=(352)8.8-0.31-1.91=(353)5.5×5.02+5.5×4.98=(354)8.9×3.6+8.9×6.4=(355)2.76÷0.8+2.54=(356)8.38×8+6.18=(357)6.75-9.28×0.25=(358)2.35+2.51+6.55=(359)7.46+5.65+6.05=(360)0.78÷6÷6.5=(361)8.03-3.32+0.7=(362)9.21-3.83-1.11=(363)9.65-6.88÷4.3=(364)2.66+2.56÷0.5=(365)4.18÷0.4+7.1=(366)1.35×7.6÷0.38=(367)0.56+3.85+9.94=(368)4.56÷7.6×4.2=(369)6.89-4.06+7.41=(370)9.9+0.46-7.59=(371)8.36-6×0.19=(372)9.4×9.8-9.44=(373)3.1×43.8-3.1×3.8=(374)5.69-3.51÷0.78=(375)9.7-2×4.7=(376)1.86+9.2+6.18=(377)6.3×1.9÷0.36=(378)6.1×7.2÷9=(379)4.14-1.2+1.17=(380)5.56+5.38+3.99=(381)4.01-3.74÷6.8=(382)9.41-8.46+9.4=(383)6.86÷0.35÷0.25=(384)2.64÷0.22-5.02=(385)3.36-3.8×0.55=(386)8.74÷0.23×0.6=(387)0.07+6.05+5.6=(388)5.94×1.5-0.41=(389)9.7×3.8÷1.9=(390)6.36×9÷0.24=(391)1.25×0.82×8=(392)0.55-0.16+7.1=(393)4.18+0.91-4.74=(394)7.5+0.05÷5=(395)8.65-4.51-2.66=(396)8.69-0.94×3.5=(397)6.93+0.54÷0.75=(398)5.7+0.72-2.26=(399)6.64+1.55×4.2=(400)7.1+6.22+2.24=(401)1.45÷0.58-0.56=(402)5.86-9.02÷2.2=(403)1.28+4.95×4=(404)5.06×2÷9.2=(405)4.59÷0.17-5.24=(406)9.31÷9.5+7.04=(407)1.4+7.63+5.23=(408)4.05-4.25×0.56=(409)9.43×84-9.43×4=(410)9.63÷1.5+0.12=(411)6.46×8+1.02=(412)0.33÷0.5÷6=(413)5.76+1.53÷0.34=(414)4.54-2.7-0.53=(415)4.4÷2.2+9.49=(416)5.84×9.5+8.3=(417)4.09-4.32÷4.5=(418)8.72-1.63-6.17=(419)9.31-0.27÷0.3=(420)0.25×7.94×0.8=(421)5.06-0.41-1.33=(422)7.43-1.67-1.46=(423)6.13-6.75×0.56=(424)9.39-4.45-2.24=(425)5.32÷1.4-2.85=(426)9.19+9.55÷5=(427)9.44÷0.32×0.92=(428)7×9.31+7×0.69=(429)7.92-3.75÷3=(430)0.4+8.49-2.9=(431)9.81+8.18+1.56=(432)0.14+5.5-1.02=(433)9.71+4.24+8.28=(434)6.79-3.42-0.91=(435)3.42÷0.2+7.73=(436)8.72÷0.5+9.19=(437)1.25×3.06×0.08=(438)3.75×8.44+3.75×1.56=(439)6.05×8.6+6.05×1.4=(440)9.12÷0.38÷3=(441)7×4.98+7×5.02=(442)6.25×1.04+6.25×8.96=(443)2.01+1.07÷0.2=(444)6.02×99-6.02×9=(445)3.38×2.5+5.22=(446)3.92+9.29+2.59=(447)8.51-3.87-0.8=(448)7.72+7.44+7.03=(449)5.82÷9.7÷0.6=(450)2.09+1.35×3.6=(451)4.7×7.1×7=(452)1.44÷4+6.73=(453)3.96÷0.18-6.68=(454)4.92+6.68+0.97=(455)3.6÷6+0.52=(456)8.93×4-3.6=(457)7.12×0.75+7.12×9.25=(458)4.87+6.76÷6.5=(459)0.5×4.7×7.8=(460)9.96×2.5×9.5=(461)5.46÷0.26-5.45=(462)2.21+1.09+9.98=(463)6.09÷0.6-9.98=(464)1.25×4.6×0.8=(465)5.12-0.98-1.61=(466)4.91+0.77÷0.14=(467)9.28-0.89-8.08=(468)5×0.47×6=(469)4.77÷0.3÷1.2=(470)7.63-6.69+3.87=(471)5.88÷0.35÷0.2=(472)7.18+1.88+8.79=(473)8.88×8.5÷0.5=(474)12.5×3.15×8=(475)1.02×42-1.02×2=(476)4.18-3.35×1.2=(477)6.39÷0.71÷2=(478)5.4×6.3÷1.4=(479)4.55÷0.26-0.62=(480)5.54+4.67×9=(481)6×8.44+6×1.56=(482)12.5×2.9×4=(483)7.61+3.85÷2.2=(484)6.73-3.3×0.2=(485)4.1÷0.4×6.6=(486)7.54-6.18+7.66=(487)3.2+9.79÷0.25=(488)2.04÷3.4+5.31=(489)7.8×7-4.89=(490)8-2.99÷2.6=(491)4.82-0.63÷4.2=(492)8.93-3.18-2.48=(493)4.4÷4+4.89=(494)1.7÷0.5×2.9=(495)9.25-3.14+1.2=(496)1.92+5.2×0.95=(497)7.54÷0.52×4.1=(498)0.25×8.04×8=(499)8.43+1.2×6=(500)1.21+9.55÷0.25=(501)2.64÷0.66×4.6=(502)6.77-2.06÷2=(503)5.33÷0.2+8.13=(504)1.94×9.5-1.61=(505)9.76×2×7=(506)2.81+6.93+5.99=(507)7.62+7.39-3.37=(508)8.73÷0.36-8.95=(509)7.38-6.23-0.79=(510)9.02×8.5-6.81=(511)7.14÷3+6.81=(512)9.52-3.18-4.27=(513)8.04×2÷0.6=(514)8.48÷8+4.62=(515)2.5×6.62×0.08=(516)4.15-8.25×0.24=(517)0.63÷0.14÷9=(518)6.01+7.07÷0.7=(519)4.79+8.16÷6=(520)8.28÷2.3+8.95=(521)0.31÷0.25+2.97=(522)7×0.68+3.3=(523)0.2×1.7×0.5=(524)9.66÷0.75-4.87=(525)5.13-0.4×1.7=(526)7.36×4.5+7.36×5.5=(527)7.05×70.6-7.05×0.6=(528)5.5×0.52÷0.4=(529)4.5×2.5×1.4=(530)6.9×9.2+6.9×0.8=(531)2.5×6.67×0.04=(532)2.7+6.48-8.85=(533)0.61×17-0.61×7=(534)5.27÷0.2÷2.5=(535)9÷0.72×7.7=(536)1.74+2.52÷7=(537)6.23-1×4=(538)5.41×2+8.94=(539)2.93-1.24÷0.8=(540)6.7×1.5×2.8=(541)2.1×15.2-2.1×5.2=(542)3.31÷0.5×3=(543)9.53-0.76-4.86=(544)5.13-0.59+4.3=(545)8.44-0.18÷1.2=(546)6.9×90.2-6.9×0.2=(547)1.71+3.44+8.88=(548)8.14+1.97+1.21=(549)1.61+1.92÷0.4=(550)9.71+6.84+5.88=(551)9.23÷0.25×7=(552)3.74×62-3.74×2=(553)6.85÷0.5-0.29=(554)3.84÷0.64÷1.5=(555)4.29÷0.25-0.41=(556)4.16÷3.2×4.5=(557)2.17÷1.4-0.81=(558)6.06+4.5×6.8=(559)6.4-2.72+2.48=(560)1.94-3.08÷5.6=(561)5.6×5.4-5.4=(562)5.07÷0.26×8.8=(563)4.07÷7.4+8.58=(564)5.72-2.1÷1.2=(565)7.05-4.18+7.12=(566)9×0.53÷0.5=(567)0.72÷0.16×2.7=(568)2.23-1.37+2.81=(569)6.43×39-6.43×9=(570)6.53+6.93+9.5=(571)2.5×8.9×1.6=(572)5+4.08÷2.4=(573)5.74-7.16×0.75=(574)5.62+1.36×2.5=(575)8.44+0.18÷0.6=(576)4.5×7.5-3.61=(577)6.97÷0.41×0.64=(578)2.81-0.44÷8.8=(579)6.98-2.5-2.11=(580)8.37÷0.18×3.5=(581)9.49-7.5+3.18=(582)3.36×2.5×0.85=(583)8×5.3×7.1=(584)5.9×5-1.49=(585)8.3×37.4-8.3×7.4=(586)2.7÷5.4×3.8=(587)1.26÷4.2×2.8=(588)0.63÷4.2÷0.12=(589)6×2×0.16=(590)3.22-7×0.19=(591)2.9×5.6×4=(592)9.51+7.68+9.57=(593)1.28÷2÷0.64=(594)9.2×1.25+9.2×8.75=(595)6.31+0.61×7=(596)6.83÷0.25+9.78=(597)8.66×6-2.43=(598)5.39-5.92÷1.6=(599)8.26-4.5×0.76=(600)9.72-6.5-2.41=(601)8.95×33-8.95×3=(602)4.85×3.8÷0.19=(603)1.25×7.81×0.8=(604)1.31+7.3×1.3=(605)7.62÷0.75÷0.32=(606)8.7×7.3+9.16=(607)2.73+2.08÷0.64=(608)3.73+9.98-9.47=(609)3.58-0.17+8.27=(610)5.5×5-3.34=(611)5.6×3.2+2.76=(612)12.5×4.96×0.8=(613)0.68+4.56÷5.7=(614)9.8÷3.5+7.01=(615)6.25+0.95-1.8=(616)2.67+8.37÷0.9=(617)7.9×7÷2.8=(618)3.22-2.8×0.7=(619)3.82-0.75-2.66=(620)8.54-6.42+3=(621)2.5×6.78×8=(622)5.5×8.8÷1.1=(623)5.26+4.11-3.25=(624)2.5×0.94×4=(625)4.7×29.8-4.7×9.8=(626)9×3.85+9×6.15=(627)5×3.4+8.83=(628)4.27+4.8-8.15=(629)6.95+9.72+9.36=(630)4.65+8.49+3.19=(631)1.22×45.5-1.22×5.5=(632)9.92+0.6×7.3=(633)7×2.6+2.17=(634)7.02-3.82-0.11=(635)8.01-0.75×1.6=(636)1.35+5.16÷0.24=(637)9.5×6.4+1.73=(638)4.6-5.9÷2.5=(639)8.15×0.6+8.15×9.4=(640)6.51+5.32+9.64=(641)5.54-1.62÷6=(642)7.28×6.5-0.43=(643)5.12×8-6.24=(644)7.51+2.22-6.13=(645)7.34+5.99-3.4=(646)8.99-1.13-2.85=(647)4.92÷0.24-8.13=(648)8.87+2.53-8.85=(649)7.6×4.9×7.5=(650)6.23÷0.25+0.68=(651)7.66-2.52-2.71=(652)4.59÷0.15÷2=(653)4.41+1.5-3.25=(654)7.43+5.4+1.08=(655)6.9×4.6+6.9×5.4=(656)0.25×5.25×8=(657)8.25×7.24+8.25×2.76=(658)3.5×9.4+3.32=(659)2.11+4.18×8.5=(660)8.05×8+3.19=(661)0.8+8.12÷0.14=(662)6.02×7.5+6.02×2.5=(663)8.72-4÷5=(664)2.3×7+2.07=(665)2.5×0.87×0.04=(666)4.95+7.76÷1.6=(667)1.9×6.6-4.32=(668)2.07+8.23-3.37=(669)2.88×6×4.5=(670)6.48-4.45+8.17=(671)8.02-6.7×0.9=(672)8.9×93.6-8.9×3.6=(673)6.04×8.25+6.04×1.75=(674)6.51-4.5÷1.2=(675)6.1×3.8-5.1=(676)4.16×6÷2=(677)2.52÷2.4×2.8=(678)7.6×7.8-5.11=(679)7.8+8.32×4.5=(680)9×6.69+9×3.31=(681)5.81-2.66÷7.6=(682)8.96-0.52-3.72=(683)4.24×8+7=参考答案(1)12.5×7.89×0.08=7.89(2)6.4×3×9.4=180.48(3)9.06÷3+3.37=6.39(4)3.78×8.5÷1.7=18.9(5)3.92÷4.9÷0.64=1.25(6)7.65÷0.34×0.22=4.95(7)9.66+2.97÷0.3=19.56(8)3.25÷0.2-8.32=7.93(9)6.48+1.41-4.74=3.15(10)3.32÷0.5+7.44=14.08(11)2.3+4.3+2.05=8.65(12)2.5×4.94×0.4=4.94(13)6.8×4.8-8.93=23.71(14)7.75-0.91-4.06=2.78(15)5.31×37-5.31×7=159.3(16)8.44+5.78×2=20(17)6.44-2.51+0.63=4.56(18)8.88÷0.2×0.25=11.1(19)3.85÷1.1×0.16=0.56(20)9.1×1.7÷0.34=45.5(21)3.02+9.14÷0.5=21.3(22)6.36÷0.25-3.48=21.96(23)8.78+4.59÷9=9.29(24)3.63-5.4×0.4=1.47(25)9.54-2.09×4=1.18(26)12.5×9.42×0.8=94.2(27)3.58×26-3.58×6=71.6(28)8.1÷2.5-1.9=1.34(29)3.34×83-3.34×3=267.2(30)2.76+6.73×3=22.95(31)5.25×2.4-6.53=6.07(32)9.57÷0.3-3.01=28.89(33)6.81+8.28-4.34=10.75(34)1.32×4.25+1.32×5.75=13.2(35)8.95×8×1.5=107.4(36)2.51-1.88+4.49=5.12(37)5.19×8+1.84=43.36(38)9.2×1.3+9.2×8.7=92(39)7.46-1.26-2.37=3.83(40)1.25×4.06×0.8=4.06(41)4.31×5×7.4=159.47(42)9.27×18-9.27×8=92.7(43)5.17÷0.44+9.33=21.08(44)9.5-5.18-0.34=3.98(45)3.23+7.24-8.49=1.98(46)3.08÷0.7×8.1=35.64(47)3.69÷0.36-5.26=4.99(48)1.25×9.56×4=47.8(49)9.42+6.05+6.93=22.4(50)2.6×0.55-0.4=1.03(51)1.17÷0.65÷2.5=0.72(52)6.92×6.75+6.92×3.25=69.2(53)5.99×8÷0.32=149.75(54)9.42-1.68÷0.48=5.92(55)9.35×2.8÷0.68=38.5(56)7.3×32.7-7.3×2.7=219(57)2.54×3-2.44=5.18(58)8.96-1.35×3.6=4.1(59)2.95+3.92×4.5=20.59(60)9+6.21÷0.54=20.5(61)5.3×3.5-6.46=12.09(62)5.5×1.1×2.8=16.94(63)3.4×8.2÷0.68=41(64)4.87+3.54-0.39=8.02(65)9×7.8×9.5=666.9(66)8.04÷6÷0.5=2.68(67)4.24×9.5+7.85=48.13(68)2.04-1.08×0.5=1.5(69)6.38+4.42-9.17=1.63(70)4.16×9.25+4.16×0.75=41.6(71)4.2×4.8-8.66=11.5(72)9.75÷1.5×0.48=3.12(73)9.48×5-7.26=40.14(74)1.29÷0.6+7.99=10.14(75)8.96-0.47-8.37=0.12(76)1.75×7.6×0.8=10.64(77)8.28-2.31÷0.55=4.08(78)1.25×6.95×8=69.5(79)5.68-6×0.49=2.74(80)6×9.2÷9.6=5.75(81)7.82×8÷1.7=36.8(82)9.48×9-8.85=76.47(83)9.77-0.38-3.49=5.9(84)9.41-3.63-4.69=1.09(85)5.94÷0.27-7.26=14.74(86)9.09-7.02÷9=8.31(87)7.92×0.75+7.92×9.25=79.2(88)0.9×9.7-6.4=2.33(89)6.66+2.37-8.22=0.81(90)6.66-2.64+4.27=8.29(91)8.19÷0.42÷0.13=150(92)2.78×8×0.5=11.12(93)7.49-6.15+8.94=10.28(94)4.6×2.1+0.43=10.09(95)9.9-2.01+2.88=10.77(96)9.54÷5.3÷0.8=2.25(97)5.98+5.75×6.2=41.63(98)9.89-8.88-0.51=0.5(99)8.04×3.5÷2.1=13.4(100)2.95+1.75×7.2=15.55(101)7.47-6.09÷3=5.44(102)3.7×9.5÷1.9=18.5(103)2.76×7÷0.6=32.2(104)0.91+2.35×5.6=14.07(105)0.25×5.87×8=11.74(106)6.09÷0.14÷5.8=7.5(107)9×3.32+9×6.68=90(108)7.14+5.54×5=34.84(109)3.21÷0.5-2.81=3.61(110)4.89-0.52×0.25=4.76(111)7.65×3.8÷0.17=171(112)6.09÷0.25÷0.21=116(113)4.56+0.8×0.9=5.28(114)6.24÷0.12-4.22=47.78(115)5.63+2.43+1.79=9.85(116)6.08×99-6.08×9=547.2(117)5.85÷0.5×2.3=26.91(118)9.36÷1.8÷5=1.04(119)7.9×59.4-7.9×9.4=395(120)5.03+1.87+0.38=7.28(121)0.64×2.5×9.3=14.88(122)5.17+9.59-7.83=6.93(123)8.8×1.45+8.8×8.55=88(124)5.52×0.75-4.09=0.05(125)2.5×4.1+1.85=12.1(126)8.87-0.25÷2.5=8.77(127)7.12×9-8.77=55.31(128)2.5×2.47×0.4=2.47(129)0.25×8.16×0.04=0.0816(130)9.2×7.8-8.24=63.52(131)8.01÷8.9÷0.6=1.5(132)8.9+0.63-2.75=6.78(133)7.59÷0.15×3.8=192.28(134)8.28-0.56×0.5=8(135)2.74-1.21÷5.5=2.52(136)5.99×9+8=61.91(137)9.47-8.97÷6.9=8.17(138)6.89×40-6.89×0=275.6(139)3.49-3.76×0.25=2.55(140)3.26-5.92÷8=2.52(141)2.44×6×6.5=95.16(142)9.47+1.29-5.13=5.63(143)3.14-9.2÷8=1.99(144)6.65×9.2+2.53=63.71(145)5.02+1.52+7.92=14.46(146)8.42-5.21-0.6=2.61(147)7.5-4.44÷3.7=6.3(148)0.25×6.09×0.8=1.218(149)6.18-0.35×8.2=3.31(150)3.7+9.63÷0.36=30.45(151)6.69÷0.3-0.67=21.63(152)9.55×7.6+8.09=80.67(153)3.22÷0.56÷0.46=12.5(154)9.2×4.3-6.93=32.63(155)4.52÷0.4-1.68=9.62(156)6.6÷0.16÷0.25=165(157)3.81÷0.5-0.12=7.5(158)3.45×4÷0.92=15(159)0.32+5.52-0.95=4.89(160)8.05×5.2÷0.5=83.72(161)0.86+3.82+3.2=7.88(162)5.21-2×2.4=0.41(163)9.47÷0.25-5.22=32.66(164)4.4-2.58+4.69=6.51(165)3.94×5.5+3.94×4.5=39.4(166)9.99+1.48÷0.37=13.99(167)0.14×48-0.14×8=5.6(168)8.82÷8.4×4.4=4.62(169)1.8×3.2+6.5=12.26(170)7.33×2+8.93=23.59(171)9.28÷2+9.37=14.01(172)6.35+6.98×7=55.21(173)2.6+3.12÷0.8=6.5(174)2.13×35-2.13×5=63.9(175)3.55-0.74÷3.7=3.35(176)0.7×2.2-0.21=1.33(177)1.48÷0.4+4.35=8.05(178)2×7.08+2×2.92=20(179)8.08÷0.2-5.94=34.46(180)4×2.9+7.75=19.35(181)6.16÷0.32×8.4=161.7(182)1.87+1.41-1.21=2.07(183)8.19÷0.18÷0.35=130(184)5.25×8×0.29=12.18(185)8.72+7-8.63=7.09(186)7.54÷6.5+1.39=2.55(187)6.67-2.19-3.33=1.15(188)5.81-7.4×0.25=3.96(189)7.5×9.3+7.01=76.76(190)7.26÷0.5+5.73=20.25(191)9.57-0.57×7=5.58(192)5.85÷6.5×4.3=3.87(193)0.72+8.04÷0.67=12.72(194)1.88÷0.25-2.19=5.33(195)4.04+6.41-9.44=1.01(196)6.67+2.75×7.8=28.12(197)0.4×1.5×3.8=2.28(198)2.9+9.14×0.5=7.47(199)6.95×9.6+1.51=68.23(200)9.26+2.08+4.06=15.4(201)4.3×2.7÷0.18=64.5(202)4.34×7.5×2.2=71.61(203)7.64×6.5×8=397.28(204)4.8×8.7÷6=6.96(205)7.09+1.45×9.8=21.3(206)2.53÷0.25÷0.44=23(207)9.08×0.25+6.29=8.56(208)4×8.8+4.88=40.08(209)6.55×8+1.56=53.96(210)4.9-3.5×1.1=1.05(211)8.91×6-3.36=50.1(212)2.18+6.61-3.02=5.77(213)7.08+7.05-7.23=6.9(214)4.85-0.84+6.09=10.1(215)1.88+0.57÷1.9=2.18(216)7.63÷0.2-9.75=28.4(217)8.75×2.6-9.31=13.44(218)8.67+2.39-3.97=7.09(219)9.04×3÷0.15=180.8(220)3.22÷0.23+4.71=18.71(221)7.04÷0.11+2.92=66.92(222)9.23÷0.5÷5.2=3.55(223)0.25×3.64×0.8=0.728(224)8.6×3.7×3.5=111.37(225)1.26÷4.2×8.6=2.58(226)2.6×8×5.2=108.16(227)5.98÷0.92-3.99=2.51(228)8.88÷0.25+8.22=43.74(229)4.9×41.8-4.9×1.8=196(230)3.18÷0.15÷0.4=53(231)3.09÷0.6-2.13=3.02(232)1.4÷0.28÷2.5=2(233)2.2÷0.16÷0.2=68.75(234)5×0.72÷7.2=0.5(235)5.56-5.08+9.72=10.2(236)7.6×2.5×0.18=3.42(237)6.05×91.4-6.05×1.4=544.5(238)5.25×6÷0.28=112.5(239)9.84÷0.8×2.3=28.29(240)0.82÷2÷4.1=0.1(241)1.76×4+2.61=9.65(242)7.35+9.3÷3.1=10.35(243)8.44-3.1+3.58=8.92(244)5.03-3.54+4.44=5.93(245)3.5÷7×4=2(246)1.14÷0.25+7.65=12.21(247)5.04÷0.42×5.1=61.2(248)4.82+0.54+0.91=6.27(249)8.86-6.44÷9.2=8.16(250)5.94÷0.15-8.38=31.22(251)7.9-2.68+9.87=15.09(252)2.5×4.29×0.08=0.858(253)8.12-3.25+1.46=6.33(254)9-1.42+2.72=10.3(255)2.25×2.4÷0.27=20(256)9.91×37-9.91×7=297.3(257)1.75×3.16+1.75×6.84=17.5(258)2.55÷0.68+8.46=12.21(259)9.76÷0.32+6.46=36.96(260)0.7×83.3-0.7×3.3=56(261)5.08+1.79×7=17.61(262)9.55+8.17+8.92=26.64(263)5.23×94-5.23×4=470.7(264)2.25×0.52+2.25×9.48=22.5(265)2.5×3.62×8=72.4(266)6×7.5×1.3=58.5(267)6.03+5.3×1.9=16.1(268)5.43÷0.3+7.13=25.23(269)5.2×2.2-5.7=5.74(270)1.2÷0.24×9=45(271)5.5×9.6÷2.4=22(272)0.2×2.7+3.09=3.63(273)4.46-5.5×0.3=2.81(274)2.5×6.5×0.4=6.5(275)0.25×8.5×0.4=0.85(276)8.03×38-8.03×8=240.9(277)9.18÷1.7-2.66=2.74(278)4.32÷0.9×7.9=37.92(279)9.54÷0.45-6.07=15.13(280)9.65×53-9.65×3=482.5(281)3.96÷0.3+9.06=22.26(282)4.29÷0.33×5.6=72.8(283)8.24+2.35×7.6=26.1(284)3.15×21.6-3.15×1.6=63(285)7.05+5.96×7=48.77(286)2.1+4.96-2.85=4.21(287)2.04+7.96-6.69=3.31(288)1.05×0.6÷0.9=0.7(289)1.25×5.05×0.04=0.2525(290)1.5×9.7×0.2=2.91(291)4.82+5.48×8.5=51.4(292)12.5×8.52×0.08=8.52(293)7.32÷1.5-1.95=2.93(294)3.25×0.6×4.6=8.97(295)6.13+2.84-2.82=6.15(296)0.11+1.8÷0.18=10.11(297)6.18-0.76-0.11=5.31(298)4.65+9.45×3.6=38.67(299)7.95×6.2+7.95×3.8=79.5(300)4.23÷0.15÷0.24=117.5(301)3.13+7.24-7.29=3.08(302)0.68+3.18÷0.6=5.98(303)1.25×0.73×4=3.65(304)6.4×7.2+6.4×2.8=64(305)7.99×3-1.17=22.8(306)5.06-1.16+1.56=5.46(307)9.9×11.8-9.9×1.8=99(308)1.68÷0.24÷0.28=25(309)9.64-7.06+3.63=6.21(310)8.5×0.76+9.17=15.63(311)8.14-7.67-0.19=0.28(312)2.82+3.44×0.75=5.4(313)6.1-8.14÷3.7=3.9(314)1.25×4.6×8=46(315)4.19×67-4.19×7=251.4(316)6.51-8.28÷1.5=0.99(317)7.68-5.01+0.79=3.46(318)4.18+3.82×3.5=17.55(319)3.46×0.5+3.46×9.5=34.6(320)3.36÷1.4÷9.6=0.25(321)8.06+1.67+0.62=10.35(322)4.34-1.63+5.66=8.37(323)3.47+2.38÷0.2=15.37(324)6.82-1.69÷0.52=3.57(325)8.85-3.32×1.5=3.87(326)3.02+6.22×0.5=6.13(327)8.17-1.76×0.25=7.73(328)4.82×5.5-4.35=22.16(329)5.42×2+5.2=16.04(330)2.5×3.7×8=74(331)3.79+3.29+8.5=15.58(332)4.4+0.9×2.8=6.92(333)2.7×8.5+5.74=28.69(334)7.48×3.5+7.48×6.5=74.8(335)3.34-0.39-1.64=1.31(336)5.55÷0.25-1.79=20.41(337)9.59-0.35×8.4=6.65(338)5.7×6.9+5.7×3.1=57(339)2.69-0.3×1.9=2.12(340)8.62-7.88+5.81=6.55(341)0.13×2×4=1.04(342)3.9÷0.25×8.7=135.72(343)6.28-4.4+1.32=3.2(344)7.45-0.47+3.18=10.16(345)8.5×4.3-3.75=32.8(346)4.57×2+4.5=13.64(347)2.1×3.8×1.5=11.97(348)2.17+4.03×7=30.38(349)0.4×34-0.4×4=12(350)5.06-0.06-2.27=2.73(351)1.25×2.24×0.08=0.224(352)8.8-0.31-1.91=6.58(353)5.5×5.02+5.5×4.98=55(354)8.9×3.6+8.9×6.4=89(355)2.76÷0.8+2.54=5.99(356)8.38×8+6.18=73.22(357)6.75-9.28×0.25=4.43(358)2.35+2.51+6.55=11.41(359)7.46+5.65+6.05=19.16(360)0.78÷6÷6.5=0.02(361)8.03-3.32+0.7=5.41(362)9.21-3.83-1.11=4.27(363)9.65-6.88÷4.3=8.05(364)2.66+2.56÷0.5=7.78(365)4.18÷0.4+7.1=17.55(366)1.35×7.6÷0.38=27(367)0.56+3.85+9.94=14.35(368)4.56÷7.6×4.2=2.52(369)6.89-4.06+7.41=10.24(370)9.9+0.46-7.59=2.77(371)8.36-6×0.19=7.22(372)9.4×9.8-9.44=82.68(373)3.1×43.8-3.1×3.8=124(374)5.69-3.51÷0.78=1.19(375)9.7-2×4.7=0.3(376)1.86+9.2+6.18=17.24(377)6.3×1.9÷0.36=33.25(378)6.1×7.2÷9=4.88(379)4.14-1.2+1.17=4.11(380)5.56+5.38+3.99=14.93(381)4.01-3.74÷6.8=3.46(382)9.41-8.46+9.4=10.35(383)6.86÷0.35÷0.25=78.4(384)2.64÷0.22-5.02=6.98(385)3.36-3.8×0.55=1.27(386)8.74÷0.23×0.6=22.8(387)0.07+6.05+5.6=11.72(388)5.94×1.5-0.41=8.5(389)9.7×3.8÷1.9=19.4(390)6.36×9÷0.24=238.5(391)1.25×0.82×8=8.2(392)0.55-0.16+7.1=7.49(393)4.18+0.91-4.74=0.35(394)7.5+0.05÷5=7.51(395)8.65-4.51-2.66=1.48(396)8.69-0.94×3.5=5.4(397)6.93+0.54÷0.75=7.65(398)5.7+0.72-2.26=4.16(399)6.64+1.55×4.2=13.15(400)7.1+6.22+2.24=15.56(401)1.45÷0.58-0.56=1.94(402)5.86-9.02÷2.2=1.76(403)1.28+4.95×4=21.08(404)5.06×2÷9.2=1.1(405)4.59÷0.17-5.24=21.76(406)9.31÷9.5+7.04=8.02(407)1.4+7.63+5.23=14.26(408)4.05-4.25×0.56=1.67(409)9.43×84-9.43×4=754.4(410)9.63÷1.5+0.12=6.54(411)6.46×8+1.02=52.7(412)0.33÷0.5÷6=0.11(413)5.76+1.53÷0.34=10.26(414)4.54-2.7-0.53=1.31(415)4.4÷2.2+9.49=11.49(416)5.84×9.5+8.3=63.78(417)4.09-4.32÷4.5=3.13(418)8.72-1.63-6.17=0.92(419)9.31-0.27÷0.3=8.41(420)0.25×7.94×0.8=1.588(421)5.06-0.41-1.33=3.32(422)7.43-1.67-1.46=4.3(423)6.13-6.75×0.56=2.35(424)9.39-4.45-2.24=2.7(425)5.32÷1.4-2.85=0.95(426)9.19+9.55÷5=11.1(427)9.44÷0.32×0.92=27.14(428)7×9.31+7×0.69=70(429)7.92-3.75÷3=6.67(430)0.4+8.49-2.9=5.99(431)9.81+8.18+1.56=19.55(432)0.14+5.5-1.02=4.62(433)9.71+4.24+8.28=22.23(434)6.79-3.42-0.91=2.46(435)3.42÷0.2+7.73=24.83(436)8.72÷0.5+9.19=26.63(437)1.25×3.06×0.08=0.306(438)3.75×8.44+3.75×1.56=37.5(439)6.05×8.6+6.05×1.4=60.5(440)9.12÷0.38÷3=8(441)7×4.98+7×5.02=70(442)6.25×1.04+6.25×8.96=62.5(443)2.01+1.07÷0.2=7.36(444)6.02×99-6.02×9=541.8(445)3.38×2.5+5.22=13.67(446)3.92+9.29+2.59=15.8(447)8.51-3.87-0.8=3.84(448)7.72+7.44+7.03=22.19(449)5.82÷9.7÷0.6=1(450)2.09+1.35×3.6=6.95(451)4.7×7.1×7=233.59(452)1.44÷4+6.73=7.09(453)3.96÷0.18-6.68=15.32(454)4.92+6.68+0.97=12.57(455)3.6÷6+0.52=1.12(456)8.93×4-3.6=32.12(457)7.12×0.75+7.12×9.25=71.2(458)4.87+6.76÷6.5=5.91(459)0.5×4.7×7.8=18.33(460)9.96×2.5×9.5=236.55(461)5.46÷0.26-5.45=15.55(462)2.21+1.09+9.98=13.28(463)6.09÷0.6-9.98=0.17(464)1.25×4.6×0.8=4.6(465)5.12-0.98-1.61=2.53(466)4.91+0.77÷0.14=10.41(467)9.28-0.89-8.08=0.31(468)5×0.47×6=14.1(469)4.77÷0.3÷1.2=13.25(470)7.63-6.69+3.87=4.81(471)5.88÷0.35÷0.2=84(472)7.18+1.88+8.79=17.85(473)8.88×8.5÷0.5=150.96(474)12.5×3.15×8=315(475)1.02×42-1.02×2=40.8(476)4.18-3.35×1.2=0.16(477)6.39÷0.71÷2=4.5(478)5.4×6.3÷1.4=24.3(479)4.55÷0.26-0.62=16.88(480)5.54+4.67×9=47.57(481)6×8.44+6×1.56=60(482)12.5×2.9×4=145(483)7.61+3.85÷2.2=9.36(484)6.73-3.3×0.2=6.07(485)4.1÷0.4×6.6=67.65(486)7.54-6.18+7.66=9.02(487)3.2+9.79÷0.25=42.36(488)2.04÷3.4+5.31=5.91(489)7.8×7-4.89=49.71(490)8-2.99÷2.6=6.85(491)4.82-0.63÷4.2=4.67(492)8.93-3.18-2.48=3.27(493)4.4÷4+4.89=5.99(494)1.7÷0.5×2.9=9.86(495)9.25-3.14+1.2=7.31(496)1.92+5.2×0.95=6.86(497)7.54÷0.52×4.1=59.45(498)0.25×8.04×8=16.08(499)8.43+1.2×6=15.63(500)1.21+9.55÷0.25=39.41(501)2.64÷0.66×4.6=18.4(502)6.77-2.06÷2=5.74(503)5.33÷0.2+8.13=34.78(504)1.94×9.5-1.61=16.82(505)9.76×2×7=136.64(506)2.81+6.93+5.99=15.73(507)7.62+7.39-3.37=11.64(508)8.73÷0.36-8.95=15.3(509)7.38-6.23-0.79=0.36(510)9.02×8.5-6.81=69.86(511)7.14÷3+6.81=9.19(512)9.52-3.18-4.27=2.07(513)8.04×2÷0.6=26.8(514)8.48÷8+4.62=5.68(515)2.5×6.62×0.08=1.324(516)4.15-8.25×0.24=2.17(517)0.63÷0.14÷9=0.5(518)6.01+7.07÷0.7=16.11(519)4.79+8.16÷6=6.15(520)8.28÷2.3+8.95=12.55(521)0.31÷0.25+2.97=4.21(522)7×0.68+3.3=8.06(523)0.2×1.7×0.5=0.17(524)9.66÷0.75-4.87=8.01(525)5.13-0.4×1.7=4.45(526)7.36×4.5+7.36×5.5=73.6(527)7.05×70.6-7.05×0.6=493.5(528)5.5×0.52÷0.4=7.15(529)4.5×2.5×1.4=15.75(530)6.9×9.2+6.9×0.8=69(531)2.5×6.67×0.04=0.667(532)2.7+6.48-8.85=0.33(533)0.61×17-0.61×7=6.1(534)5.27÷0.2÷2.5=10.54(535)9÷0.72×7.7=96.25(536)1.74+2.52÷7=2.1(537)6.23-1×4=2.23(538)5.41×2+8.94=19.76(539)2.93-1.24÷0.8=1.38(540)6.7×1.5×2.8=28.14(541)2.1×15.2-2.1×5.2=21(542)3.31÷0.5×3=19.86(543)9.53-0.76-4.86=3.91(544)5.13-0.59+4.3=8.84(545)8.44-0.18÷1.2=8.29(546)6.9×90.2-6.9×0.2=621(547)1.71+3.44+8.88=14.03(548)8.14+1.97+1.21=11.32(549)1.61+1.92÷0.4=6.41(550)9.71+6.84+5.88=22.43(551)9.23÷0.25×7=258.44(552)3.74×62-3.74×2=224.4(553)6.85÷0.5-0.29=13.41(554)3.84÷0.64÷1.5=4(555)4.29÷0.25-0.41=16.75(556)4.16÷3.2×4.5=5.85(557)2.17÷1.4-0.81=0.74(558)6.06+4.5×6.8=36.66(559)6.4-2.72+2.48=6.16