17.2÷2+2.8×0.51.72÷4+2.28×0.25怎样简便计算
答案:2 悬赏:0 手机版
解决时间 2021-03-31 17:12
- 提问者网友：川水往事
- 2021-03-31 02:22
17.2÷2+2.8×0.51.72÷4+2.28×0.25怎样简便计算
最佳答案
- 五星知识达人网友：逃夭
- 2021-03-31 02:44
17.2÷2+2.8×0.5
=17.2x0.5+2.8x0.5
=（17.2+2.8）x0.5
=20x0.5
=10
1.72÷4+2.28×0.25
=1.72x0.25+2.28x0.25
=（1.72+2.28）x0.25
=4x0.25
=1
=17.2x0.5+2.8x0.5
=（17.2+2.8）x0.5
=20x0.5
=10
1.72÷4+2.28×0.25
=1.72x0.25+2.28x0.25
=（1.72+2.28）x0.25
=4x0.25
=1
全部回答
- 1楼网友：举杯邀酒敬孤独
- 2021-03-31 03:12
17.2÷2+2.8×0.5
=17.2÷2+2.8÷2
=（17.2+2.8）÷2
=20÷2
=10，
————
1.72÷4+2.28×0.25
=1.72÷4+2.28÷4
=（1.72+2.28）÷4
=4÷4
=1
=17.2÷2+2.8÷2
=（17.2+2.8）÷2
=20÷2
=10，
————
1.72÷4+2.28×0.25
=1.72÷4+2.28÷4
=（1.72+2.28）÷4
=4÷4
=1
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