13问答网 > 56x38怎么验算？

56x38怎么验算？

2025-03-16 04:32:38
推荐回答（3个）
回答1：

56x38的计算：

56x38=2128

56x38的验算：

2128÷56=38

回答2：

解：56x38等于（ 2128 ）
∵已知需求出56x38等于多少

X × Y = Z，即X = Z ÷ Y
∴56 × 38
= 56 × （40 - 2）
= 56 × 40 - 56 × 2
= 2240 - 112
= 2128
经检验，56 = 2128 ÷ 38符合题意
答：56x38等于2128

回答3：

38×56/2128÷38/2128÷56（这是三种办法哦）

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