题目内容
用小数计算下面各题.
5米80厘米+4米15厘米
6吨50千克-650千克
+
=
-
=
+
=
5米80厘米+4米15厘米
6吨50千克-650千克
1 |
10 |
5 |
10 |
5 |
10 |
22 |
100 |
8 |
10 |
85 |
100 |
分析:根据题意,先换算成小数,然后再进一步计算即可.
解答:解:
5米80厘米+4米15厘米,
=5.8米+4.15米,
=9.95米;
6吨50千克-650千克,
=6.05吨-0.65吨,
=5.4吨;
+
,
=0.1+0.5,
=0.6;
-
,
=0.5-0.22,
=0.28;
+
,
=0.8+0.85,
=1.65.
5米80厘米+4米15厘米,
=5.8米+4.15米,
=9.95米;
6吨50千克-650千克,
=6.05吨-0.65吨,
=5.4吨;
1 |
10 |
5 |
10 |
=0.1+0.5,
=0.6;
5 |
10 |
22 |
100 |
=0.5-0.22,
=0.28;
8 |
10 |
85 |
100 |
=0.8+0.85,
=1.65.
点评:关键是先换成小数,然后再进行计算.
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