2又3/4乘以0.72+7/25乘以2.75这题怎么算
答案:3 悬赏:30
解决时间 2021-01-29 21:28
- 提问者网友:树红树绿
- 2021-01-29 00:45
2又3/4乘以0.72+7/25乘以2.75这题怎么算
最佳答案
- 二级知识专家网友:毛毛
- 2021-01-29 02:08
2又3/4x0.72+7/25x2.75
约分,去掉分母
=11x0.18+7x0.11
提取公因数11
=11x(0.18+0.07)
=11x0.25
=(10+1)x0.25
=2.5+0.25
=2.75
约分,去掉分母
=11x0.18+7x0.11
提取公因数11
=11x(0.18+0.07)
=11x0.25
=(10+1)x0.25
=2.5+0.25
=2.75
全部回答
- 1楼网友:骨子里都是戏
- 2021-01-29 03:40
=2.75x0.72+0.28x2.75
=2.75x(0.72+0.28)
=2.75
=2.75x(0.72+0.28)
=2.75
- 2楼网友:白昼之月
- 2021-01-29 02:52
=11/4×18/25+7/25×11/4
=11/4×(18/25+7/25)
=11/4×1
=11/4
=2,75追答2又3/4乘以0.72+7/25乘以2.75这题怎么算
=2,75×0,72+0,28×2,75
=2,75×(0,72+0,28)
=2,75×1
=2,75
=11/4×(18/25+7/25)
=11/4×1
=11/4
=2,75追答2又3/4乘以0.72+7/25乘以2.75这题怎么算
=2,75×0,72+0,28×2,75
=2,75×(0,72+0,28)
=2,75×1
=2,75
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