用简便方法算一算 16乘125 48乘99 47乘 - 知识问答

用简便方法算一算 16乘125 48乘99 47乘101 58乘17+17乘42 35乘79+79+79乘64 367+

1个回答

16乘125
=2×8×125
=2×1000
=2000
48乘99
=48×100-48
=4800-48
=4752
47乘101
=4700+47
=4747
58乘17+17乘42
=（58+42）×17
=100×17
=1700
35乘79+79+79乘64
=79×（35+1+64）
=79×100
=7900
367+367乘19
=367×（1+19）
=367×20
=7340

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