用自己喜欢的方法计算 5-214/17-13/17 71×99 0.625×0.5+5/8+1/2×62.5% 8.37-3.25-(1.37+1.75) 45×(7/9+4/15-0.6) 0.25×48.
用自己喜欢的方法计算
5-2
-1
71×99
0.625×0.5+
+
×62.5%
8.37-3.25-(1.37+1.75)
45×(
+
-0.6)
0.25×48.
5-2
14 |
17 |
3 |
17 |
71×99
0.625×0.5+
5 |
8 |
1 |
2 |
8.37-3.25-(1.37+1.75)
45×(
7 |
9 |
4 |
15 |
0.25×48.
数学人气:422 ℃时间:2019-10-23 04:19:10
优质解答
(1)5-21417-1317,=5-(21417+317),=5-3,=2;(2)71×99,=71×(100-1),=71×100-71,=7100-71,=7029;(3)0.625×0.5+58+12×62.5%,=0.625×0.5+0.625+0.5×0.625,=0.625×(0.5+0.5+1),=0.625×2,...
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