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4.62除以0.5加上5.35乘以2用简便方法怎么做?
人气:348 ℃ 时间:2019-09-05 16:19:23
解答
4.62除以0.5加上5.35乘以2
=4.62×2加上5.35乘以2
=(4.62+5.35)×2
=9.97×2
=19.94
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