8.7x18.7-8.7x7.4-8.7的简算
答案:4 悬赏:40 手机版
解决时间 2021-03-29 17:01
- 提问者网友：献世佛
- 2021-03-28 23:08
8.7x18.7-8.7x7.4-8.7的简算
最佳答案
- 五星知识达人网友：西岸风
- 2021-03-28 23:23
怀疑题目抄错了，应该是8.7×18.7-8.7×7.7-8.7
=8.7(18.7-7.7-1)
=8.7×10
=87
=8.7(18.7-7.7-1)
=8.7×10
=87
全部回答
- 1楼网友：山有枢
- 2021-03-29 01:28
8.7x18.7-8.7x7.4-8.7
= 8.7x(18.7-7.4-1)
= 8.7×10.3
= 8.7×10+8.7×0.3
= 87+2.61
= 89.61
= 8.7x(18.7-7.4-1)
= 8.7×10.3
= 8.7×10+8.7×0.3
= 87+2.61
= 89.61
- 2楼网友：上分大魔王
- 2021-03-29 01:20
=8.7x(18.7-7.4-1)
=8.7x10.3
=89.61
=8.7x10.3
=89.61
- 3楼网友：你哪知我潦倒为你
- 2021-03-28 23:50
8.7x18.7-8.7x7.4-8.7
=8.7×(18.7-7.4-1)
=8.7×10.3
=8.7×(10+0.3)
=8.7×10+8.7×0.3
=87+2.61
=89.61
=8.7×(18.7-7.4-1)
=8.7×10.3
=8.7×(10+0.3)
=8.7×10+8.7×0.3
=87+2.61
=89.61
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