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5/9×3.56+3.56×4/9=? ( 6.4-6/11÷8/33)÷2=? 要过程
人气:470 ℃ 时间:2020-04-03 19:53:08
解答
5/9×3.56+3.56×4/9
=3.56×(5/9+4/9)
=3.56×1
=3.56
( 6.4-6/11÷8/33)÷2
=(6..4-2.25)÷2
=4.15÷2
=2.075
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