Question

32x36+12x31怎样简便计算？

Answer 1

简便计算32×36+12×31
解题思路：不能进行简便运算的按顺序计算，简便运算核心是运用加法和乘法各种定律进行计算，计算出整数部分方便后续计算的过程
解题过程：

32×36+12×31

=32×(36+12)-12

=32×50-（12+2×32）

=1600-76

=1524

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Answer 2

31×36+36+12×31
=31×（36+12）+36
=31×48+31+5=31×49+5=31×(50-1)+5
=1550-31+5
=1550-26
=1524

Answer 3

32x36+12x31
=31x36+36+31x12
=31x48+36
=31x50+36-31x2
=1550+36-62
=1500+86-62
=1500+24
=1524