简便计算(需过程): 4.2×3.5×1.3
答案:3 悬赏:10 手机版
解决时间 2021-02-12 11:34
- 提问者网友:姑娘长的好罪过
- 2021-02-11 16:49
简便计算(需过程): 4.2×3.5×1.3
最佳答案
- 五星知识达人网友:山有枢
- 2021-02-11 17:01
=4.2*0.5*7*1.3=2.1*9.1=2.1*(9+0.1)=18.9+0.21=19.11
全部回答
- 1楼网友:梦中风几里
- 2021-02-11 18:21
=2.1*2*3.5*1.3
=2.1*7*1.3
=2.1*9.4
=2.1*10-2.1*0.6
=21-1.26
=19.74追答错了=2.1*2*3.5*1.3
=2.1*7*1.3
=2.1*9.1
=2.1*10-2.1*0.9
=21-1.89
=19.11这个对的
=2.1*7*1.3
=2.1*9.4
=2.1*10-2.1*0.6
=21-1.26
=19.74追答错了=2.1*2*3.5*1.3
=2.1*7*1.3
=2.1*9.1
=2.1*10-2.1*0.9
=21-1.89
=19.11这个对的
- 2楼网友:想偏头吻你
- 2021-02-11 17:10
4.2*3.5*1.3
=7*0.6*0.7*5*1.3
=4.9*3.9
=(5-0.1)*(4-0.1)
=20-0.4-0.5+0.01
=20-0.9+0.01
=19.11
=7*0.6*0.7*5*1.3
=4.9*3.9
=(5-0.1)*(4-0.1)
=20-0.4-0.5+0.01
=20-0.9+0.01
=19.11
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