1.25乘7.2的递等试能简便的就简便不能简便的用园先的。
答案:3 悬赏:20 手机版
解决时间 2021-01-20 20:20
- 提问者网友:别再叽里呱啦
- 2021-01-20 05:44
1.25乘7.2的递等试能简便的就简便不能简便的用园先的。
最佳答案
- 五星知识达人网友:想偏头吻你
- 2021-01-20 06:01
①1.25×7.2 ②1.25×7.2
=1.25×(7+0.2) =0.25×5×2×3.6
=1.25×7+1.25×0.2 =2×0.25×5×3.6
=8.75+0.25 =1/2×18
=9 =9
懂了么??请您采纳,求采纳.追答③1.25×7.2
=1.25×(8-0.8)
=1.25×8-1.25×0.8
=10-1
=9④1.25×7.2
=0.25×5×3×2.4
=3/4×12
=9
=1.25×(7+0.2) =0.25×5×2×3.6
=1.25×7+1.25×0.2 =2×0.25×5×3.6
=8.75+0.25 =1/2×18
=9 =9
懂了么??请您采纳,求采纳.追答③1.25×7.2
=1.25×(8-0.8)
=1.25×8-1.25×0.8
=10-1
=9④1.25×7.2
=0.25×5×3×2.4
=3/4×12
=9
全部回答
- 1楼网友:纵马山川剑自提
- 2021-01-20 07:35
1.25*7.2
=1.25*(8-0.8)
=1.25*8-1.25*0.8
=10-1
=9
=1.25*(8-0.8)
=1.25*8-1.25*0.8
=10-1
=9
- 2楼网友:孤老序
- 2021-01-20 07:06
1.25✘7.2
=1.25✘(7+0.2)
=1.25✘7+1.25✘0.2
=8.75+0.25
=9
=1.25✘(7+0.2)
=1.25✘7+1.25✘0.2
=8.75+0.25
=9
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