人教版二年级数学下册口算题.ppt

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1、58-36=89+21=420+80=432=4600+4700=273+6=99=280+450=279=43-30=81=420+80=64-8=96-42=730-190=78+15=27-3=819=82=3200+5100=124+18=328=255+36=227309300693313811556215008300249349540854500414484=280+450=648=48-5=1800-900=96-42=497+7=5+58=4900-1800=124+18=58-36=64-8=1200-400=280+450=1200-400=99=43-30=83-20=8

2、1=280+450=65+37=28276790073080081380031005463730817306321221485642+13=53+8=843=80-44=800+900=34+9=64-8=77=213=3700-370=800+900=53+8=800+900=255+36=65+37=280+450=84+7=567-3=700-200=60+600=55717009143616365613330170061674157306605001700400-300=80+70=180-90=700-60=60+600=180-90=30+60=40+80=700-100=100-

3、20=1800+200=900+800=240-180=1400-600=2100-700=6600-600=300+1000=280+450=1800-900=490-180=9064012090906606008020001700608001400900730600013003101501001200-400=800+1100=48-5=124+8=65+30=89+21=324+10=35+35=64-8=648=7000+3000=84+48=5+58=243=3700-3000=8500-5500=7(213)=40(26)=72(24)=990=497+7=486+5=800190

4、06011181000070055085650638300049901314932721+82-60=36+34-14=73+12-71=21+82-60=44-5+12=100-76+22=72-45+32=54-21-18=67-47+22=21+82+17=83-27+10=54+21-18=65-33-18=68-65-3=54-52+17=88-51-24=76-63+1=63+18+11=65+15-47=77-34+55=43-29+13=43591201413339814066155156144642571992274335-(28-28)=77-38+42=60-34+35=

5、17+(27-10)=55+(38-15)=54-41+36=99-88+77=75+15-30=92-6+11=42-37+54=77-64+22=12+(29-19)=69+10-36=27+12-28=67+27-37=33-17+15=75-(36+10)=72-54+12=65-(39-15)=62-18+24=54+21+18=35348843593141682911356078816149972257309353-(29+19)=35+12-28=86-12-15=57-33+31=36-27+9=77-19-16=88-34+18=85-36+27=12+79-62=51-27

6、+28=51-42+53=77-(65-6)=71-52+36=75-(24+26)=75+(24-23)=32+(45-38)=81-45+36=24-16+40=63+12-42=53-(37+15)=63-(23+28)=55572525539331918766225721594229187648121800+200=900+800=240-180=1400-600=2100-700=6600-600=300+1000=280+450=1800-900=490-180=1200-400=800+1100=48-5=497+7=124+8=65+30=89+21=486+5=324+10=

7、35+35=48-26+18=2000800130031027601817007301400800149350606000900190011134064-8=48=77=213=700-200=60+600=400-300=80+70=180-90=700-60=60+600=180-90=30+60=40+80=700-100=100-20=84+48=497+7=124+18=255+36=427=843=567-3=65+37=851=5690905064064112014660906008085216673217150100660500545+4=38+4=49+3=76+6=65+7

8、=38+5=56+8=53+5=35+9=25+3=64+4=49+5=48+2=93+3=86+8=62+6=33+8=78+5=9+99=100-89=172837342429243090132818412048615628383945+5=11=55=728=99=248=147=61=153=362=42=62=62=105=242=497=102=546=204=496=213=36=93=90-45=244=155=279=99=729=342=010=06=1000=350=2173=50300003813242525458666971875312592969113364=55=

9、56+41=567=162=426=82=51=45-39=363=246=567=366=243=45=273=84=568=369=366=455=66=126=14=186=18=248=366=486=468=546=77=51=16=568=217=287=73=357=236=427=459=306=497=92=567=648=246=637=85-8=43=168=728=27=99=279=57=189=83=8193=729=819=91=189=11=426=248=364=637=1824=25=546=2(244)=7+63=94=366=97=568=28+6=012=75=36+4=305=639=648=38+16=455=71=836=204=