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6.3+3.7×1.4-0.4的简便运算?
1个回答
2022-12-11 · 知道合伙人教育行家
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简便运算如下:
6.3+3.7×1.4-0.4
=6.3+3.7×(1+0.4)-0.4
=6.3+3.7+3.7×0.4-0.4
=10+0.4×(3.7-1)
=10+0.4×2.7
=10+1.08
=11.08
6.3+3.7×1.4-0.4
=6.3+3.7×(1+0.4)-0.4
=6.3+3.7+3.7×0.4-0.4
=10+0.4×(3.7-1)
=10+0.4×2.7
=10+1.08
=11.08
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