1、70-23=28+68=30X15=15X60=800-130=600X50=94 三 2二300-=-50=90-79=8404-20=4004-8=4X23=二.竖式计算321X12=185X25=193X36=128X98=255X51=16 + 49二7604-20=40X25=180 + 55二83-48=8X13二40X170=380-290=2400X3=574-3=7504-30=180 + 54=9504-50=96 一 16二57 一 19二95-59=35X2=4X130=3204-40=914-13=40X50=6604-30=380 + 57二20X35=46 + 5
2、0=7804-30=140 + 180=68 = 17二4804-4=47+ 53二800X6=4X18=17 + 54二16X50=5X190=8704-30=71-24=504-25=4515=998X72=236X 39=953X18=259X64=338 X口算2704-30=50-43=3004-2=14X4 二904-18=203-42=12X7=36X2=88-59=424-14=2004-50=70 = 4 二27+45二04-320=854-5=5X130=30+38=944-2=0 + 230=850 = 50 二320-90=4X15=6X15=6X16=990-?11=
3、7004-2=8004-20=2200-600=93-61=990 = 90 二24 X 50=960-69=18X50=964-12=684-4=47+26二125X80=65 一 13=38 X 30=7004-20=90 = 30 二6404-20=92-58=26+ 54二1400X5=330X90=990X90=305X60=408X 58=550X59=300-=-2=14X4=90-rl8=42 m 14二27 + 45二30+38二8504-50=9904-11=9904-90=96 = 12二47+26=654-13=38X30=26 + 54二298X86=665X 99=
4、445X61=126X39=250 X45004-900=70+90二48004-40=14X201=80-?16=4204-20=25004-50=16X5=32 X 20=67X4二2404-40=3604-60=87-r 3=25X4=40X9=6964-3=125X8=8X25=804-20=72-45=4X50=20X2=300X6=120X3 =420X20 =16X70=150X20=604-30=240F40 =210 70=400 = 50=1000= 100 二25X40=300X330=3X1400=804-40=6004-30=4004-80=65=140X300=88
5、004-40=96004-800=750-290=5X490二760X20=7504-50=37X200=6604-20=8600-4200=2104-3=404-5=160 40=3504-70=13X3=12X6=23X4=7204-90=24X3=150X40=6404-80=15X5 二23X3=4804-80=12X2X5=27X3二90-?15=48 = 4 二24X20=640-rl6=394-3=32X3=48-rl6=12X8=564-14=244-8=83-45=5604-80=二、竖式计算445 X 40=355 X60=803 X 35=196X19=542X32=40
6、4-20=50X40=70X4=904-30=2404-80=3X50=9604-3=95-=-5=1204-60=7204-80=20X14=90X3=30X23=2404-60=1804-9=20 X 40=120X4=2004-40=44X2=2704-9=5404-90=3204-8=724-3=1604-80=7X12=1004-50=5X120=4004-50=524X26=12X5=13X6=27X3=52X8=12X50=13X60=27 X 30=52X80=120X50=130X60=270X30=520X 80=250X80=300X60=500X22=400X80=650X20=800X60=900X11=270X20=700X21=700X80=400X25=800X12=730X40=250X44=107X90=350X40=420X50=43X200=550X20=-46 =+ 58 =-49 =97 =-69 =28)29)50050 =30)2804-70 =31)34X2 =32)15X50360 一 40X8 =+ 52 =502 X 88=803 X 33=205 X 80=404 X 50=139X64=
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