一道數(shù)學題:用乘法分配律計算下面各題
一道數(shù)學題:用乘法分配律計算下面各題
(20+4)×25 35×37+65+37 25×41
32×(200+3) 38×29+38 39×101
(20+4)×25 35×37+65+37 25×41
32×(200+3) 38×29+38 39×101
數(shù)學人氣:128 ℃時間:2020-03-20 11:46:21
優(yōu)質(zhì)解答
(20+4)×25=20×25+20×4=100+80=18035×37+65×37=(35+65)×37=100×37=370025×41=25×(40+1)=25×40+25×1=100+25=12532×(200+3)=32×200+32×3=6400+96=649638×29+38=38×(29+1)=38×30=114039×101=3...這也太亂了吧6道啊,1.(20+4)×25=20×25+20×4=100+80=1802.35×37+65×37=(35+65)×37=100×37=37003.25×41=25×(40+1)=25×40+25×1=100+25=1254.32×(200+3)=32×200+32×3=6400+96=64965.38×29+38=38×(29+1)=38×30=11406.39×101=39×(100+1)=39×100+39×1=3939
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