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(1)(-4.25)×89-(15−123)(2)(-7)+(-123)-(13−278)(3)(113−256−349)×(-715)(4)(227−1135)×114−215(5)−113+0.4312×217(6)5.2×38+4.625×515−15.6.
题目详情
8 |
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(2)(-7)+(-1
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(3)(1
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(6)5.2×
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(2)(-7)+(-1
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(6)5.2×
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(3)(1
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(6)5.2×
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(6)5.2×
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(6)5.2×
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(6)5.2×
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▼优质解答
答案和解析
(1)(-4.25)×89-(15−123),=(-4.25)×89+1715,=-349+1715,=-21445;(2)(-7)+(-123)-(13−278),=(-7+278)-(123+13),=-418-2,=-618;(3)(113−256−349)×(-715),=(-8918)×(-715...
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