36×42-36的简便运算是什么?
6个回答
2021-04-06
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可以运用乘法分配率简便计算。
36×42-36
=36ⅹ42-36X1
=36×(42-1)
=36×41
=36×(40+1)
=36x40十36㐅1
=1440+36
=1476
36×42-36
=36ⅹ42-36X1
=36×(42-1)
=36×41
=36×(40+1)
=36x40十36㐅1
=1440+36
=1476
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简便计算方法如下:
36×42-36
=36×(42-1)
=36×41
=36×40+36
=1440+36
=1476
36×42-36
=36×(42-1)
=36×41
=36×40+36
=1440+36
=1476
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解:36×42-36
=36×(42-1)
=36×41
=1476
=36×(42-1)
=36×41
=1476
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==36×(42-1)
=36×41
=36×(40+1)
=36×40+36×1
=1440+36
=1476
=36×41
=36×(40+1)
=36×40+36×1
=1440+36
=1476
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36x42-36
=36x(42-1)
=36x41
=36x(40+1)
=36x40+36
=1440+36
=1476
=36x(42-1)
=36x41
=36x(40+1)
=36x40+36
=1440+36
=1476
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评论
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你对这个回答的评价是?
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