0.22×15-0.88×2.5如何简便运算？
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0.22×15-0.88×2.5
=0.22×15-0.22×4×2.5
=0.22×15-0.22×10
=0.22×(15-10)
=0.22×5
=1.1
=0.22
=0.22×15-0.22×4×2.5
=0.22×15-0.22×10
=0.22×(15-10)
=0.22×5
=1.1
=0.22
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展开全部
0.22×15-0.88×2.5
=0.22×15-0.22×4×2.5
=0.22×15-0.22×(4×2.5)
=0.22×15-0.22×10
=0.22×(15-10)
=0.22×5
=1.1
=0.22×15-0.22×4×2.5
=0.22×15-0.22×(4×2.5)
=0.22×15-0.22×10
=0.22×(15-10)
=0.22×5
=1.1
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已踩过<
评论
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你对这个回答的评价是？
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