(3.75+4.1+2.35)×9.8 简便计算
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(3.75+4.1+2.35)×9.8
=(3.75+2.35+4.1)×(10-0.2)
=(6.1+4.1)×(10-0.2)
=10.2×(10-0.2)
=(10+0.2)×(10-0.2)
=10²-0.2²
=100-0.04
=99.96
=(3.75+2.35+4.1)×(10-0.2)
=(6.1+4.1)×(10-0.2)
=10.2×(10-0.2)
=(10+0.2)×(10-0.2)
=10²-0.2²
=100-0.04
=99.96
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2016-07-25 · 知道合伙人教育行家
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(3.75+4.1+2.35)×9.8
=10.2x9.8
=10.2x(10-0.2)
=10.2x10-10.2x0.2
=102-2.04
=99.96
=10.2x9.8
=10.2x(10-0.2)
=10.2x10-10.2x0.2
=102-2.04
=99.96
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展开全部
(3.75+4.1+2.35)×9.8
=(3.75+2.35+4.1)×9.8
=(6.1+4.1)×9.8
=10.2×9.8
=(10+0.2)×(10-0.2)
=10^2-(0.2)^2
=100-0.04
=99.96
=(3.75+2.35+4.1)×9.8
=(6.1+4.1)×9.8
=10.2×9.8
=(10+0.2)×(10-0.2)
=10^2-(0.2)^2
=100-0.04
=99.96
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展开全部
(3.75+4.1+2.35)×9.8
=(3.75+2.35+4.1)×9.8
=(6.1+4.1)×9.8
=(10+0.2)×(10-0.2)
=100-0.04
=99.96
=(3.75+2.35+4.1)×9.8
=(6.1+4.1)×9.8
=(10+0.2)×(10-0.2)
=100-0.04
=99.96
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
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