22.05*82-20.05*4.5-20.05*8简便方法怎么算?

loveshiyi2022-10-04 11:39:541条回答

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lzwxt 共回答了18个问题 | 采纳率100%
22.05*82-20.05*4.5-20.05*8
=22.05(82-4.5-8)+2×82
=22.05×69.5+164
=1393..475+164
=1557.479
1年前

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