计算下面各题.6.45-2.74+3.6 &nb...
答案:1 悬赏:0 手机版
解决时间 2021-02-10 04:18
- 提问者网友:鼻尖触碰
- 2021-02-09 03:52
计算下面各题.6.45-2.74+3.6 &nb...
最佳答案
- 五星知识达人网友:独钓一江月
- 2021-02-09 03:58
(1)6.45-2.74+3.6
=3.71+3.6
=7.31;
(2)45.36+(83.4-15.07)
=45.36+68.33
=113.69;
(3)4.5+3.8+15.5
=(4.5+15.5)+3.8
=20+3.8
=23.8;
(4)67.39-(12.67+17.39)
=67.39-12.67-17.39
=(67.39-17.39)-12.67
=50-12.67
=37.33;
(5)35.62-8.38-5.62
=35.62-5.62-8.38
=30-8.38
=21.62;
(6)2.06+5.42+3.94+2.58
=(2.06+3.94)+(2.58+5.42)
=6+8
=14.
=3.71+3.6
=7.31;
(2)45.36+(83.4-15.07)
=45.36+68.33
=113.69;
(3)4.5+3.8+15.5
=(4.5+15.5)+3.8
=20+3.8
=23.8;
(4)67.39-(12.67+17.39)
=67.39-12.67-17.39
=(67.39-17.39)-12.67
=50-12.67
=37.33;
(5)35.62-8.38-5.62
=35.62-5.62-8.38
=30-8.38
=21.62;
(6)2.06+5.42+3.94+2.58
=(2.06+3.94)+(2.58+5.42)
=6+8
=14.
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