分?jǐn)?shù)乘法練習(xí)題附答案.doc

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1、45×1021=310×1112=75×1521=45×12=815×920=78×57=1415×714=920×45=1517×1730=35×79=611×512=811×2224=18×716=1425×1011=16×924=825×1524=319×512=56×925=1532×1645=79×910=1219×57=435×1027=434×1226=1425×1536=1332×58=518×512=1360×1239=1415×319=1323×2339=718×23=1531×93=1439×1328=3245×8=715×45

2、=317×521=521×215=2455×1125=1235×718=627×920=1363×1439=2536×2740=215×49=1531×1135=1322×66=45×223=310×313=225×1521=45×112=1813×821=178×25=145×29=1920×429=1517×1215=525×79=1311×512=811×1715=218×717=1425×3211=416×925=4825×1536=21319×1217=156×1111=213×11521=519×145=21219×38=147×1101

3、1=649×1229=21425×1532=31215×513=3118×611=645×1533=4815×1039=849×319=3418×929=21531×62=249×311=329×72=515×15=2217×521=512×211=5511×21625=234×6611=3611×2713=359×145=256×178=525×729=623×715=637×239=45×1021=8/21310×1112=11/4075×1521=145×12=2/5815×920=6/2578×57=5/81415×714=7/15920×4

4、5=9/251517×1730=1/235×79=7/15611×512=5/22811×2224=2/318×716=7/1281425×1011=28/5516×924=1/16825×1524=1/5319×512=5/7656×925=3/101532×1645=1/679×910=7/101219×57=36435×1027=8/189434×1226=12/2211425×1536=7/301332×58=65/256518×512=25/2161360×1239=1/151415×319=147/951323×2339=1/3718×2

5、3=7/271531×93=451439×1328=1/63245×8=256/45715×45=21317×521=5/119521×215=2/632455×1125=24/1251235×718=2/15627×920=1/101363×1439=2/272536×2740=15/32215×49=8/1351531×1135=33/2171322×66=3945×223=32/15310×313=1225×1521=12/745×112=6/51813×821=8/13178×25=3/4145×29=2/51920×429=1/51517×

6、1215=1525×79=21/51311×512=35/66811×1715=16/15218×717=7/81425×3211=98/55416×925=3/24825×1536=9/521319×1217=3156×1111=2213×11521=4519×145=46/521219×38=100147×11011=3649×1229=8/321425×1532=6/531215×513=57/393118×611=5/3645×1533=102/334815×1039=136/117849×319=4/33418×929=121531×62=

7、154249×311=2/3329×72=232515×15=782217×521=60/119512×211=15511×21625=72/5234×6611=183611×2713=9359×145=32/5256×178=85/16525×729=39623×715=48637×239=15