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竖式计算237x4?

237x5x4=237x2x5x2=474x10=4740

就是直接计算即可.

237* 82 474 1896 19434237*82=19434

237*15=355543*208=894430*460=1380019*236=4484

82*237=19434; 237*82 474 1896 19434 640*24=15360; 640*24 256 128 15360 408*25=10200; 408*25 2040 816 10200 580*70=40600; 580*70 40600

com/zhidao/wh%3d600%2c800/sign=080705110bd79123e0b59c729d0475ba/f3d3572c11dfa9ec4894030e65d0f703918fc175.jpg" esrc="http://c.hiphotos130x24=3120 liuxu72 2016-01-07 4 1 分享

769x4的竖式计算769x4=3076

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