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1、口算题:64080=15X5=23X3=12X2X5=48080=16X5=27X3=9015=48+4=64016=393=24X20=简便计算题:(300+6)x1225x(4+8)125x(35+8)口算题:7600200=7600400=680+270=530+280=9200400=84021=180X500=8000500=190020=200X160=8700300=300X330=简便计算题:704X2588X125102X763;口算题:37+26=76-39=605+59=30X23=12X8=27+32=48+27=4500X20=73+15=120X600=200X36
2、0=6800X400=简便计算题:84x101504x2578x102第4天口算题:280+270=4X2500=600040=5X1280=310-70=400X14=470+180=100025=160X600=20X420=290X300=8100300=简便计算题:99x6499x16638x99口算题:31400=700014=60012=960080=140X300=880040=9600800=750-290=5X490=760X20=7500500=370X200=简便计算题:26X39+61X26356X9-56X999X55+55口算题:65013=8600-4200=24
3、0X4=64080=15X10=12X11=160X30=220X40=104X5=450050=20X2=9030=简便计算题:78X101-7852X76+47X76+76134X56-134+45X134口算题:27030=270X30=8421=769=667=100-54=23+15=3604=555=326=700070=20040=简便计算题:26X39+61X26356X9-56X999X55+55第8|口算题:11X80=24X50=3600400=400050=530-70=420-90=960030=7X700=203+98=1800300=240+570=4800400
4、=简便计算题:256-147-53373-129+29189-(89+74)95口算题:378580=580-490=910-370=420-90=170+320=1000-51=520-260=910-190=35X200=22X200=8800400=9300300=简便计算题:48522-4482523(40+4)999X999+1999第10天口算题:27X3=9015=16X5=484=63070=6030=24X20=32X3=306=350X2=50X11=250X6=简便计算鹿:28425125X32X25972125口算题:6X300=1800200=42070=6020=7
5、84=45050=37010=64080=15X5=23X3=12X10=48080=简便计算题:380+476+120(569+468)+(432+131)704X25第12天口算题:12X8=48080=600+40=15050=63070=362=15X6=30060=505=16X3=705=2X45=简便计算题:72016563042456-(256-36)口算题:70+90=480040=14X201=8016=42020=250050=16X5=32X20=67X4=36060=873=24040=简便计算题:99+999+9999+999997755-(2187+755)221
6、4+638+286第14天口算题:16X70=150X20=6030=8020=24040=21070=40050=1000100=25X40=125X8=300X330=3X1400=简便计算题:3999+4981883-39812X25口算题:25X4=40X9=6963=125X8=8X25=8020=72-45=4X50=20X2=300X6=120X3=420X20=简便计算题:3065-738-1065899+3442357-183-317-357第16天口算题:73+15=120X600=200X360=6800X400=280+270=4X2500=600040=5X1280=
7、310-70=400X14=470+180=100025=简便计算题:138254(13125)X(3X8)(12+24+80)X50口算题:20X420=290X300=8100300=7600200=7600400=680+270=98014=420030=6X1300=1300X50=200X48=930-660=简便计算题:178X101-17884X36+64X8475X99+2X75第18天算题:9600800=750-290=5X490=760X20=7500500=370X200=65013=8600-4200=240X4=8X7+56=30035=420-(420-300)=
8、简便计算题:25X(24+16)178X99+1787942+79+79X57口算题:530+280=9200400=84021=180X500=8000500=190020=200X160=8700300=300X330=3X1400=700014=60012=简便计算题:98X19912318-1233+8512350(344)X3第20天口算题:16X5=29X3=36X2=12X6=4X19=13X7=23X4=39X2=8X12=24X3=2X28=14X6=简便计算题:73002548100475158+262+138口算题:3X19=18X2=4X23=13X6=2X27=15X
9、6=16X2=12X7=5X16=3X17=5X14=25X2=简便计算题:25X32X12532X(25+125)88X125第22天口算题:19X3=18X4=28X3=27X3=2X45=36X2=2X26=16X4=13X4=27X3=5X17=14X6=简便计算题:32(25+125)(13125)X(3X8)178X101-178口算题:3X24=3X15=3X17=38X2=14X4=26X3=3X25=2X18=12X8=14X3=3X16=2X26=简便计算题:12X2575X24138254第24天口算题:2X35=19X5=15X6=12X6=4X25=3X26=4X14
10、=13X7=46X2=15X4=8X12=2X29=简便计算题:(12+24+80)X50704X2525X32X125口算题:2X19=14X6=15X5=16X3=4X23=3X18=2X47=15X6=13X5=16X3=28X3=17X2=简便计算题:88X125102X7658X98第26天口算题:4X18=13X7=2X29=16X4=18X3=14X7=15X6=4X24=36X2=4X18=13X5=12X5=简便计算题:12318-1233+8512350(344)325X(24+16)口算题:2X35=4X15=2X16=25X4=16X4=29X3=2X47=2X25=4
11、6X2=13X4=15X6=23X4=简便计算题:84X36+64X8475X99+2X7583102-83X2第28天口算题:423=604=6840=322=453=453=605=805=573=966=684=955=简便计算题:178X99+1787942+79+79X5721500125口算题:755=502=846=342=705=905=573=783=753=762=562=605=简便计算题:7300254810047516800120第30天口算题:968=483=722=753=905=813=786=723=524=924=726=705=简便计算题:14.9-(5.2+4.9)18.32-5.47-4.329.3-5.26-2.74口算题:684=873=562=843=513=906=782=753=762=873=684=423=简便计算题:2.73+0.89+1.274.37+0.28+1.63+5.7210-0.432-2.568第32天口算题:813=604=764=564=513=582=873=564=644=855=955=964=简便计算题:25X6.8X0.040.25X32X0.1256.4X1.2512.5口算题:786=762=702=604=847=843