【初一数学】计算题魔鬼训练(含答案)

为什么初一数学的计算非常重要？1）初一第一次月考：80-90分（满分100分）与计算相关；2）初一第一次期中期末：75-85分（满分100分）与计算相关；为什么在初一练习计算？1)初一数学的考察皆与计算相关2)初一课程压力小，学生有充足的时间练习计算3)初一属初中打基础的阶段，初一的计算能力不过关，直接影响学生初二初三的学习效果和考试成绩13.(-16-50+3)÷(-2)15.17887.21+43+5312.79212116.(6)×(4)+(32)÷(8)318.(9)×(4)+(60)÷1221.24.-15-[(-0.4)×(-2.5)]525.26.-5-7+-5-(-7)+(-243)+(-246)31.211×(-455)+365×455-211×545+545×36540.3×(-2)3-4×(-3)2+841.(-1)10×22+(-2)3÷242.-22-(-2)2-23+(-2)3-244.(-10)2+[(-4)2-(3+32)×2]46.(-2)2003+(-2)200247.(-0.25)2005×4200449.(-2)3-3×[(-4)2+2]-(-3)2÷(-2)50.－23÷(-4)×(-7+5)51.(-1)10×22+(-2)3÷252.8-23÷(-4)×(-7+5)3)]55.-2×-(+3)÷3+(+22)÷3-2×56.9＋5×(-3)－(-2)2÷457.(-5)3×[2-(-6)]-300÷558.－12×(1-2)÷1159.[12－4×(3-10)]÷460.2×(-3)3－4×(-3)＋1561.－14-(2,(82,(2,(82,66.-8-3×(-1)3-(-4)467.70.71.75.76.12-4×(3-10)÷(4-9)-10）85.(-2)2×(-1)3-3×［-1-(-2)］86.23-32-(-4)×(-9)×087.4-5×88.-8-3×（-1）3-（-1489.-23÷90.-5）-90÷（-15）-0.25）94.(-370)×(|(-,)I+0.25×24.5--5),I×25%95.-8+1-0.04,)I×-,)I99.(-8)×(|(-8,)I+(-7)×-8,)I-15×8(-125)-1),I-1,)I×-+1-),I,-1.75)(3)(1)(2)116.|(-5,I÷(|-32,(3)(1)(2)117.(-81)÷2×÷(-15)(-10)÷(-8)×(-4),125.-(-8)2×(-1)5127.(-6)×(-3)4135.1.8-136.-4+2137.-48×138.0.5×22-(-3)2144.－86＋86×35.2-8.6×42145.-2009×146.-99×27148.2010×32011149.(-7)2011+14×72010-(-49)×(-7)2009150.4.73-152.（-81-27+63-18）÷（-9）{(-1.8)+0.8+(-0.9)}11(2)1(3)158.-33+[22+|(-33,I+52+(|-11(2)1(3)159.-15+[13--4+(|(-4,)I]-4.44188165.（-36.32）+3550+-925+-36254188168.-45-(+33)-(-31)-(+12)169.(+13）-5-11+1170.1-(|(+1,)I-(-)-(-0.6)-3171.--1-2+3+2-+174.(-3)×(-11)×(-4)177.(-34)÷(-12)÷(-11)178.(-1)×(-2)×(-11)×(-11)×(-14)180.-8-[-3.6-(-0.2)×(-0.4)×(-1)]182.5.72-（+15.8）183.-0.47-186.-32×2+(-2)3×3-48÷(-2)+(-2)6192.-(-3)2×2195.-8×(-5)-63196.4-5×198.2÷5×200.5×(-6)-(-4)2÷(-8)204.205.206.207.(-6)×8-(-2)3-(-4)2×5216.(-)×(-4)2-0.25×(-5)×(-4)3220.－72+2×(-3)2+(－6)÷(-)2224.(-3)2÷(-4)2228.6+22×229.-10+8÷(-2)2-4×3230.-15-[(-0.4)×(-2.5)]5232.(-14)+26+(-14)+(-16)+8233.(-5.5)+(-3.2)-(-2.5)-4.8234.(-8)×(-25)×(-0.02)236.237.242.-20+(-15)-(-28)-17243.-65+23-15+7245.(-5.54)+(-3.2)-(-2.5)-4.8246.9+5×(-3)-(-2)2÷4247.(-1)3×(-5)÷(-3)2+2×(-5)248.-23+(-2)2×(-1)-(-2)4÷(-2)3249.(-5)3×[2-(-6)]-300÷5252.(-1-3+4-7)×(-15×4)253.2÷(-3)×4÷(-51)254.(-5.5)×3.2+4.5×6.8259.-72+2×(-3)2+(-6)÷(-)2263.(-47)(51)+(-41)-31264.+6.75-5265.(-6)×(-4)+(-32)÷(-8)-3266.267.-4)2-0.25×(-5)×(-4)3272.(-9)×(-4)+(-60)÷12273.0-(-3)2÷3×(-2)3274.-22×275.-1277.(-2)2-(-3)3×(-1)3-(-3)3280.31-22+4+11284.285.8+(-3)2×(-2)287.－34÷2288.-(-3)2×2-(-3)4×4289.290.+2.75+292.(-1)10×2+(-2)3÷4293.(-10)4+[(-4)2-(3+32)×2]294.-23÷300.－4×[(1-7)÷6]3+[(-5)3-3]÷(-2)3302.9.53-8-(2-|-11.64+1.53-1.36|)303.73.17-(812.03-|219.83+518|)304.-11+12-(39-8)305.-9-5-(9-45)306.-5.6+4.7-|-3.8-3.8|308.310.2-22-23-...-218-219+220312.4-5×313.-0.6314.2÷5×315.316.5×(-6)-(-4)2÷(-8)317.2318.319.(-6)×8-(-2)3-(-4)2×5328.(-5)×(-36)+(-7)×(-36)+12×(-36)330.-4.03712+7.53712-36×（7-5+7)331.333.[(-3)×(-4)-5]×[-8-2×(-6)]÷4334.-8÷(-2)3-4÷(-1)4335.(-1155)÷[(-11)×3×(-5)]337.1-3339.-22-(-2)2-23-(-2)3341.-22-(-2)23-|(-3)2÷(-3)3|+3-|4÷9|-|-72|,346.-32-(-3)2+(-5)2×-,)I-(-0.3)2÷-0.9-(-1)43「1「1-L22|-3×42-|353.-23-3×(-1)3-(-1)4356.-12-13-(1-0.64÷32)2358.-16-[(-0.4)×(-2.5)]26,228(38,24278(38,2427(3,(2,(3,233(2,(3,(2,(3,233(2,2000371.(18,6÷27(3,(4,(16,(3,(4,(16,372.×(-57)(-37)376.(-1990)×(-84)-48×(-1990)-1990×14-18×1990377.999+(-999)×(-999)+999-999999lL3(4,」(3,,379.7lL3(4,」(3,,382.(0.125)1995×[(-2)1995]3385.3+32+33+...+32006387.1949219502+1951219522+...+1997219982+19992390.987654321×987654324—987654323×987654322394.395.3-3×396.-24+（3-72-2×（-1210×2+3÷4398.424402.8-(-4)÷23×3403.7×32÷3+(-3)2404.-5+(-2)4-24÷(-2)3405.(-28)÷(-6+4)+(-1)×5406.2÷(-2)+0÷7-(-8)×(-2)407.408.122÷(-3)3÷(-2)3-(-9)2÷33409.-22÷2410.-23+(-2)2×(-1)-(-2)4÷(-2)3411.(-1)3×(-5)÷(-3)2+2×(-5)414.1×-(-)×2+(-)×416.4×(-3)2-15÷(-3)-50425.-4+2×(-3)-6÷0.25427.18÷{1-[0.4+(1-0.4)]×0.4}429.-3-[4-(4-3.5×1)]×[-2+(-3)]430.(3.5-7.75-4.25)÷1.1435.436.(-0.125)7×88437.(0.25)40×25610438.1+2+(-3)+(-4)+5+6+(-7)+(-8)+…+(-23)+(-24)441.19÷(-7)-128÷(-7)+33÷(-7)222232456718244880120168224288612203042567290453.--------2612203042567290454.++++104088154238456.13-3.75×3.2×|(3+456.13-3.75×3.2×|(3+15+35+63,I457.1+2+3+4+…+20261220420458.2008+2009+2010+2011+2012459.++++2615357726122030970299003323993!4!100!478.+++++32-152-172-192-1112-1132-122-132-142-1992-15+66+77+88+99+10484.5×6-6×7+7×8-8×9+9×1057612203042345782021243535712202830422330314151119120123124490.1-+-+-+-+612203042567290491.++++++494.2×3+4×5+…+98×99+497.3x-2=10-2(x+1)499.7x+8=5x+2500.3(x-3)-2(2x+1)=6501.-3x+7=4x+21503.9x-2(-x+4)=3506.3(x-3)-(2x-1)=1513.3x+6=31-2x514.4-x=3(2-x)518.2x+5=3(x-1)519.2(2x+1)-2(1+x)=x+3521.3(4x-1)+5(3x+2)=7(2x-1)+1x+4x-3523.-526.2(3x+1)-6=3x528.3(6-2x)-4(18+3x)=1534.5(x-5)+2x=-4537.2(x-7)+3=29-5(2x-4)542.5(x+8)-5=6(2x-7)546.1-3(8-x)=-2(15-2x)549.5(x+8)=6(2x-7)+5553.5(x-2)-7(x+8)=3558.3x-2=10-2(x+1)5x+19x+11-x560.=-561.4(2x+3)=8(1-x)-5(x-2)572.==4-1573.575.576.{576.{577.{577.{llx=y+3578.{l4a-9b578.{l4a-9b=8172-1579.{579.{llx+4y=13580.{〔2x-y=580.{ll3x+4y=-2582.{582.{ll8x-3y=1583.{583.{ll3x-2y=6584.{584.{ll6x-25y-23=-16585.{585.{ll2x-4y=-11586.{586.{588.{588.{ll2x-y=14589.{〔0.3x-y=589.{ll0.2x-0.5y=19590.{〔3x-y=590.{ll4x+2y=23591.{〔3x-2y=591.{592.{592.{ll3x-2y=-12593.{〔2x-y=593.{ll3x-4y=3|lx-y=-3594.{23595.{〔2x594.{23595.{llx+2y=4596.{596.{ll2x-y=1597.{597.{ll2x-3y=17598.{598.{ll2x+y=4.4599.{599.{ll2x=5y600.{600.{601.{601.{ll3x+2y-18=0603.{22〔|1x-3603.{22|l|l2x-3=-y604.{3604.{3606.{〔3x-y=606.{607.{607.{608.{〔3x-y=608.{ll2x-3y=-2609.{609.{611.{23611.{23|l|l3x-2y=8612.{〔3x-2y=612.{ll2x+3y=7614.615.616.〔2xl〔2xl3x619.{619.{624.x-4≤x3x-1625.-≤1x-1x+4627.->-2629.x>4633.2x5x638.x+52x+33x2x+22x+3643.644.xxx一1650.11+2xx656.11x>2xx+12x1659.143x<1x660.3x-662.3(x+2)<4(x-1)+7663.->1x663.->1667.+3>x+1668.3(x-2)<8-4xx+2x-1669.->0670.x-x+2<2-x671.3-5x>x-2(2x-1)673.674.9-4(x-5)>7(x+1)677.x-3(x-2)>4x-1x+4679.-x-1x+4x+x-32x-5683.2x-3<4x-1.55x-0.81.2-x684.-<685.686.x+12x-1x-1x+4690.->-2x-12x+1691.x-12x+1693.7-2x+3>3x+8-x22x-2x+4694.-4>-695.2x-3<698.{〔2x-3<6698.{ll1-4x≤5x-2704.{704.{llx+8>4x-1707.{〔x-7>4x+707.{ll5-2x<15-4x713.{l-3x+〔713.{l-3x+≤x-24>x-2715.{715.{ll3-2x716.{716.{723.{723.{ll3x+2<4x724.{724.{ll2x>8728.{l3-728.{l3-2x732.{732.{740.{l-3x+〔740.{l-3x+≥x-24>x-2455997.-1010.-13.344720.4.73323.-4.2224.-2725.-627.-6328.-1531.154000532.-6436.-2537.-1138.-1640.-5242.-61644.92445.346.-22002147.-448.-649.-5750.-453.-2054.-3056.-757.-1060158.-60.-2716162.-63.-1865.-66.-26168.-8170.-4571.-72.-51175.-76.-880.455285.-786.-188.-689.-8390.-91.4192.-2595.-696.-2502998.5.03100.-899.5105.-199.5108.-2004374243142118.-58120.-5423122.-85126.-127.-486129.-130.-29131.-132.-2134.-1136.-137.-80138.-7571145.-2007146.-26761157.-0.4159.-10160.-43.6161.-94162.-11166.-772168.-64170.-1172.-26173.-31174.-214180.-4.48182.-10.08184.-8.754191.-90200.-287202.-671205.-25206.31.3207.-1201208.-7209.-616214.-20216.-903217.-42220.-85221.-2229.-20230.-2232.-10233.-11234.-4235.-14237.-74239.-32242.-24243.-50245.-11.04246.-7247.-5248.-10249.-1060250.-8251.-1255.-8259.-85260.-173261.-43262.-263.-61266.-6267.-2268.-269.-58270.-903281.-16283.-85284.-11285.-10288.-3421289.-293.999238296.-2298.30.3301.-43303.-1.03305.-50306.-8.5307.-66309.-35314.-8315.-45316.-287318.31.3319.-120320.-903321.-46327.-20330.-8.54334.-3335.-7339.-8341.-41342.-3343.-982346.-38.1347.-1.51348.-349.-0.3350.-3351.-8516353.-63356.-1.02358.-2359.-1361.-9.76362.-5364.-232372.-56374.-104.727375.-900376.1990005382.-182387.3897326390.-2391.24755392.-4393.-48395.-125396.-233400.-410.-10413.-17416.-9419.-1425.-34428.-16 402.9.5408.-2411.-521417.-420.-58423.-32.8426.-508438.-247 -172-3-13411-65-4-8 56222,)I ,)I,2442936,)I2233420212121,55413-25-37-511-7(1)(1)(1)(1)(1)(1)(1)(1),,,, 4949 3862534003232009603 ,=×-,)I+2×-+-++-),I2+33+49+10=(|(-+-++-,)I+×(|(-+-+-++-+-),I,所以原式=1155×=651. ,+(|(-+-++-,)I=12-2×12×13+24-1177+1=-=-=-=-=-=83086162-13-14-110-1=1-+-+-++-=1-+-+-++-13628799=1-==1-=13-14-15-16-17-11==1-=50405039504023993-14-1100-1=-=-=-=-----原式=1-=1-=50505050477.原式=1-(++++)=1-|((1-+-+-++-,)I=(1-1+1-1+1-1+1-1+1-1+1-1)×1479.1-=(1-)×(1+)=×，1-=(1-)×(1+)=×，……所以，223349492494922-1232-2242-3282-72222223232427282(2)(2)(2)(2)(2)2-1,I2-1,I