四年级脱式计算

1、45+15x6=250-5x8=6x5-2x4=400-4+20 x5=10+12-3+20=(80-20+80)-4=360-40+10=40 x20-200=(80-25)X2=90 x2-3=16x6-3=300 x6-9=30 x20-15=400-4x7=(350-80)-9=18-64-8=42-6+20=40-5x7=41+18-2=75-11x5=42+7-29=30 x3+8=70+(100-10 x5)=70+45=540-9x7=160+70+50=80+60-3=5600-80=286+24X66=1023-52X16=14X60=21X60=25x16-4=336+7

2、0-6=12x50+10=120 x25-5=36x11-3=1025-25x8=25x9x4=200-33x3=3020-1010=25x8+199=23x11-13=125-25-5=4200-2200+200=220+80-150=20 x8x5=600-3x200=20+20-2=35-25-5=36+8-40=29X11-29=59-23+41-17=100X2+100X5=144-6X73=27X40+986=（4+4x25）+8x7x125=165x99+165=2785-（785+34）=35X60=7X30=32X103-32x3=195x29+195=39x105+105=

3、28x70=17x20=34x70=28x30=157x43-157x3=315x40=408x36+408x4=450 x300=456-6=343-7=230 x40=120X24=2x41846-620-380=48x46+48x548+8x25=125x36x8x2528x125-125x20=2365-（307+365）=48x125+50 x125x2x8=7.8x9.9+0.78=(1010+309+4+681+6)x12=456-16-4=538+785-537=7.2-0.8-1.2x5=3x9146x782x6x854=515x7-8+61-625=50160-40=120

4、-144-18+35=347+45x2-4160-52=58+37)-(64-9x5)=95-(64-45)=178-145-5x6+42=420+580-64x21-28=812-700-(9+31x11)=38.85+14x(14+208-26)(68-68x55)-85=12x48-12x48=32x15+25)-16=32x(15+25)-16=920-1680-40-7=690+47x52-398=148+3328-64-75=119x3-43=65x(48-12x4)=68x19+32x19=1015-1075x4-57=58x(387-13)+42x374=(71-56)x9-1

5、15-25=54-26x(37-29)+6212x6-(12-7)-6120 x12-72-6=102x45-2X45=78x692.2x69=56x25=8x(200125)=127+352+73+44=89+276+135+33=25+71+75+29+88243+89+111+57=9405-2940-28x21=360 x24*32+730=2100-94+48x54=51+(2304-2042)x23=500 x6-(50 x2-80)105x12635)*25864*(2723)x124215+(4361-716)*81=247+18)x27*25=36-720*(360*18)=

6、1080*(63-54)x80=528+912)x5-6178=8528*41x38-904=264+318-8280*69=174+209)x26-9000=814-(278+322)*15=1406+735x9*45=3168-7828*38+504=796-5040*(630*7)=285+(3000-372)*36=360*(126)x5288*(2614)x830657381065899+344235718331735775x99+2x7583x10283x298x199236510862144972992370+19953999+498188339812x2575x24138x25

7、x4(13x125)x(3x8)(12+24+80)x50704x2525x32x12532x(25+125)+88x125102x7658x98178x10117884x36+64x84123x18123x3+85x12350 x(34x4)x325x(24+16)4x(25x65+25x28)181+2564)+2719378+44+114+242+2221235(17801665)75x27+19x2531x870+13x310178x99+17879x42+79+79x577300-25-48100-4-7516800-12030100-210032000-40049700-70012

8、48-243150-154800-252356(1356721)25x32x12532x(25+125)88x125276+228+353+219(375+1034)+(966+125)(2130+783+270)+101799+999+9999+99755(2187+755)2214+638+28630657381065899+3442357183317357236510862144972992370+19953999+498188339812x2575x24138x25x4(13x125)x(3x8)(12+24+80)x50704x25102x7658x98178x1011783150-

9、154800-2521500-12598x19984x36+64x8475x99+2x7583x10283x225x(24+16)123x18123x3+85x12350 x(34x4)x3178x99+17879x42+79+79x577300-25-48100-4-7516800-12030100-210032000-40049700-7001248-242356(1356721)1235(17801665)75x27+19x25330-(6550)1286x8-1664x(12+65-13)31x870+13x3104x(25x65+25x28)12525x6(135+75)-(14x5

10、)12060-5x51024-16x3(135+415)-5+16120020 x18720-720-15(360-144)*24x3240+480-30 x21080-(63-54)x80225-10 x(6+13)120 x2+120)-9164-13x5+859405-2940*28x21920-1680*40*7690+47x52-39819x96962*7410000(59+66)x645940*45x(798616)(315x40364)*712520*8x(121*11)(2010906)x(65+15)20+120*24)x8106x976x9117*13+36x153774*

11、37x(65+35)540(148+47)*13(308308*28)x11(10+120*24)x5(238+7560*90)*1421x(230192*4)19x96962*7410000(59+66)x645940*45x(798616)(315x40364)*7735x(700400*25)1520(1070+28x2)36-720*(360*18)103*73-159-57=83x91*131+38=197-46+67-13=38*54x126-52=192+52x136*66=123-47+159-16=164x23-126+74=117+21+17-19=7*9x161+93=93x35-128+36=86x9x187x99=148+3328*64-75360 x24*32+7302100-94+48x5451+(2304-2042)x234215+(4361-716)*8