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48 52×19怎样简便算式？

2025-04-01 08:08:01

推荐回答（3个）

回答1：

解：原式=50－2+52×(20－1)
=50－2+1040－52
=50－2+1040－50－2
=1040－4
=1036

回答2：

48+52×19
＝52-4+52×19
＝52×20-4
＝1040-4
＝1036

回答3：

48+52×19
=(52-4)+52×19
=(52+52×19)-4
=52×(1+19)-4
=1040-4
=1036

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