(-0.3)乘(-7分之10)等于多少?
(-0.3)乘(-7分之10)等于多少?
数学人气:610 ℃时间:2019-10-30 20:16:07
优质解答
(-7分之10)就是 -0.7 所以-0.3 乘以 -0.7 =2.1
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