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12.5加上7.52除以0.24的商,和是多少?
人气:288 ℃ 时间:2020-01-26 05:33:27
解答
12.5+7.52÷0.24
=12.5+7.52÷(0.8x0.3)
=12.5+9.4÷0.3
=25/2+94/3
=75/6+188/6
=263/6
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