28.79+19.27-(5.27-1.21)如何简便?
13个回答
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你好呀,这道题简便运算如下:
28.79+19.27-(5.27-1.21)
=28.79+19.27-5.27+1.21
=28.79+1.21+(19.27-5.27)
=30+14
=44
28.79+19.27-(5.27-1.21)
=28.79+19.27-5.27+1.21
=28.79+1.21+(19.27-5.27)
=30+14
=44
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展开全部
28.79+19.27-(5.27-1.21)
=28.79+19.27-5.27+1.21
=28.79+1.21+(19.27-5.27)
=30+14
=44
=28.79+19.27-5.27+1.21
=28.79+1.21+(19.27-5.27)
=30+14
=44
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评论
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你对这个回答的评价是?
展开全部
28.79+19.27-(5.27-1.21)
=28.79+19.27-5.27+1.21
=(28.79+1.21)+(19.27−5.27)
=30+14
=44
=28.79+19.27-5.27+1.21
=(28.79+1.21)+(19.27−5.27)
=30+14
=44
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已踩过<
评论
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你对这个回答的评价是?
展开全部
28.79+19.27-(5.27-1.21)
=28.79+19.27-5.27+1.21
=(28.79+1.21)+(19.27-5.27)
=30+14
=44
=28.79+19.27-5.27+1.21
=(28.79+1.21)+(19.27-5.27)
=30+14
=44
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已踩过<
评论
收起
你对这个回答的评价是?
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