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9.4乘以0.98+6乘以0.098怎样简便运算
人气:477 ℃ 时间:2020-03-17 20:58:30
解答
9.4*0.98+6*0.098
=9.4*0.98+6*0.1*0.98
=(9.4+6*0.1)*0.98
=10 * 0.98
=9.8
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