2.8×(6.7+3.5)-28如何简便运算
答案:4 悬赏:20 手机版
解决时间 2021-03-06 03:28
- 提问者网友:火车头
- 2021-03-05 23:31
2.8×(6.7+3.5)-28如何简便运算
最佳答案
- 五星知识达人网友:时间的尘埃
- 2021-03-05 23:53
2.8×(6.7+3.5)-28
=2.8×(6.7+3.5-10)
=2.8×0.2
=0.56
=2.8×(6.7+3.5-10)
=2.8×0.2
=0.56
全部回答
- 1楼网友:山河有幸埋战骨
- 2021-03-06 02:25
2.8×(6.7+3.5)-28
=2.8*10-2.8*10
=0
=2.8*10-2.8*10
=0
- 2楼网友:长青诗
- 2021-03-06 00:47
2.8×(6.7+3.5)-28
=28×(0.67+0.35-1)
=28×0.02
=0.56
=28×(0.67+0.35-1)
=28×0.02
=0.56
- 3楼网友:你哪知我潦倒为你
- 2021-03-06 00:14
2.8×(6.7+3.5)-28
=2.8×(6.7+3.5)-2.8x10
=2.8x(6.7+3.5-10)
=2.8x0.2
=0.56
=2.8×(6.7+3.5)-2.8x10
=2.8x(6.7+3.5-10)
=2.8x0.2
=0.56
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