简便计算88x22十22x12

Question

如题所述

Answer 1

解：原式=22x（88+12）
=22x100
=2200
分析：主要考察结合律的运用。

Answer 2

88x22十22x12
=（88+12）x22
=100x22
=2200

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Answer 3

88x22十22x12
=22×(88+12)
=22×100
=2200

Answer 4

88x22十22x12
=22*（88+12）
=22*100
=2200