简算 4.32x101-4.32 2.5x0.8-1.8x0.5
答案:6 悬赏:0 手机版
解决时间 2021-04-06 14:59
- 提问者网友:寂寞梧桐
- 2021-04-05 21:03
简算 4.32x101-4.32 2.5x0.8-1.8x0.5
最佳答案
- 五星知识达人网友:行雁书
- 2021-04-05 21:08
(1)、4.32x101-4.32
=4.32×100+4.32-4.32
=432
(2)、2.5x0.8-1.8x0.5
=2.5×0.8-0.5×(1+0.8)
=2.5×0.8-0.5×1-0.5×0.8
=(2.5×0.8-0.5×0.8)-0.5×1
=(2.5-0.5)×0.8-0.5
=2×0.8-0.5
=1.6-0.5
=1.1
望采纳………………
不懂问
追问:谢谢
=4.32×100+4.32-4.32
=432
(2)、2.5x0.8-1.8x0.5
=2.5×0.8-0.5×(1+0.8)
=2.5×0.8-0.5×1-0.5×0.8
=(2.5×0.8-0.5×0.8)-0.5×1
=(2.5-0.5)×0.8-0.5
=2×0.8-0.5
=1.6-0.5
=1.1
望采纳………………
不懂问
追问:谢谢
全部回答
- 1楼网友:纵马山川剑自提
- 2021-04-06 00:45
追问:谢谢🌹
- 2楼网友:旧脸谱
- 2021-04-05 23:56
追问:谢谢🌹
- 3楼网友:老鼠爱大米
- 2021-04-05 23:22
432
追答:1.1
追问:谢谢🌹
追答:1.1
追问:谢谢🌹
- 4楼网友:舍身薄凉客
- 2021-04-05 23:06
4.32×101-4.32
=4.32×(101-1)
=4.32×100
=432
追答:2.5×0.8-1.8×0.5
=0.5×0.8×5-1.8×0.5
=0.5×(4-1.8)
=0.5×2.2
=11
追问:谢谢🌹
=4.32×(101-1)
=4.32×100
=432
追答:2.5×0.8-1.8×0.5
=0.5×0.8×5-1.8×0.5
=0.5×(4-1.8)
=0.5×2.2
=11
追问:谢谢🌹
- 5楼网友:迷人又混蛋
- 2021-04-05 21:42
(1)
=4.32(101-1)
=4.32×100
=432
(2)
=0.5×5×0.8-1.8×0.5
=0.5×4-1.8×0.5
=0.5(4-1.8)
=0.5×2.2
=1.1
追问:谢谢🌹
=4.32(101-1)
=4.32×100
=432
(2)
=0.5×5×0.8-1.8×0.5
=0.5×4-1.8×0.5
=0.5(4-1.8)
=0.5×2.2
=1.1
追问:谢谢🌹
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