Question

36乘以72加86乘以72加122乘以28的简便计算。

36乘以72加86乘以72加122乘以28的简便计算。

Answer 1

36*72+86*72+122*28
=（36+86）*72+122*28
=112*72+122*28
=122*（72+28）
=122*100
=12200
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Answer 2

36乘以72加86乘以72加122乘以28
=（36+86）×72+122×28
=122×72+122×28
=122×（72+28）
=122×100
=12200

Answer 3

先提取前面两个式子中的72，就成了72乘（36+86）=72×122
72×122+122×28=122×（72+28）=12200

Answer 4

如图

Answer 5

36乘以72加86乘以72加122乘以28
=36x72+86x72+122x28
=72x(36+86)+122x28
=72x122+122x28
=122x(72+28)
=122x100
=12200