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36×25÷(6×5)×9+16×4×(5×9)简便计算
求30分钟之内解答
人气:250 ℃ 时间:2020-04-08 23:00:41
解答
36×25÷(6×5)×9+16×4×(5×9)
=(36÷6)×(25÷5)×9+16×(4×5)×9
=6x5x9+16x20x9
=30x9+320x9
=270+2880
=3150
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