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数学
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56*25+328的简便运算
人气:322 ℃ 时间:2019-11-04 08:48:13
解答
56×25+328
=14×4×25+328
=14×(4×25)+328
=14×100+328
=1400+328
=1400+328
=1728
25×4=100 125×8=1000 5×20=100这几个算式你要记牢,到后面简便运算会用到.
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