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简便计算 4.4X5.5一44X0.33一0.44X22
人气:426 ℃ 时间:2020-09-01 12:11:10
解答
4.4X5.5一44X0.33一0.44X22
=4.4*5.5-4.4*3.3-4.4*2.2
=4.4*(5.5-3.3-2.2)
=4.4*0
=0
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