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0.125+3.7×1/8+1/8×5.3 用简便运算
人气:310 ℃ 时间:2020-03-25 14:15:45
解答
0.125+3.7×1/8+1/8×5.3
=1/8×1+3.7×1/8+1/8×5.3
=1/8×(1+3.7+5.3)
=1/8×1
=1/8
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