递等式计算，能简便的要简便计算。 4,2+12,36+5,8+2,64 7,41-2,9
答案:4 悬赏:70 手机版
解决时间 2021-11-27 00:24
- 提问者网友：你挡着我发光了
- 2021-11-26 21:32
递等式计算，能简便的要简便计算。 4,2+12,36+5,8+2,64 7,41-2,9
最佳答案
- 五星知识达人网友：酒醒三更
- 2021-11-26 22:37
4,2+12,36+5,8+2,64
=（4.2+5.8）+（12.36+2.64）
=10+15
=25
7,41-2,96-4,04
=7.41-（2.96+4.04）
=7.41-7
=0.41
=（4.2+5.8）+（12.36+2.64）
=10+15
=25
7,41-2,96-4,04
=7.41-（2.96+4.04）
=7.41-7
=0.41
全部回答
- 1楼网友：几近狂妄
- 2021-11-27 00:11
追答
- 2楼网友：行雁书
- 2021-11-26 23:18
- 3楼网友：山河有幸埋战骨
- 2021-11-26 22:59
4.2+12.36+5.8+2.64
=(4.2+5.8)+(12.36+2.64)
=10+15
=25
7,41-2,96-4,04
=7,41-(2,96+4,04)
=7,41-7
=0.41
45,68-7,7+2.3
=45,68-(7.7-2.3)
=45,68-5.4
=40.28
4.6-(1.75+2.6)
=4.6-2.6-1.75
=2-1.75
=0.25
20.22+15.7-0.22+4.3
=(20.22-0.22)+(15.7+4.3)
=20+20
=40
7.59-2.6+4.41-3.4
=(7.59+4.41)-(2.6+3.4)
=12-6
=6
=(4.2+5.8)+(12.36+2.64)
=10+15
=25
7,41-2,96-4,04
=7,41-(2,96+4,04)
=7,41-7
=0.41
45,68-7,7+2.3
=45,68-(7.7-2.3)
=45,68-5.4
=40.28
4.6-(1.75+2.6)
=4.6-2.6-1.75
=2-1.75
=0.25
20.22+15.7-0.22+4.3
=(20.22-0.22)+(15.7+4.3)
=20+20
=40
7.59-2.6+4.41-3.4
=(7.59+4.41)-(2.6+3.4)
=12-6
=6
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