题目内容
(2006?宣汉县)直接写出得数.
1×
÷1×
=
-
=
3.75+2.25=
+
=
×8×
=
8+7.2-12.3=
:
=
1.8-40%=
1×
3 |
4 |
3 |
4 |
1 |
5 |
1 |
10 |
3.75+2.25=
1 |
2 |
1 |
3 |
5 |
12 |
1 |
15 |
8+7.2-12.3=
3 |
4 |
3 |
7 |
1.8-40%=
分析:本题根据小数,分数的加法、减法、乘法、除法的运算法则及比的意义进行计算即可.
解答:解:1×
÷1×
=
,
-
=
,
3.75+2.25=6,
+
=
,
×8×
=
,
8+7.2-12.3=2.9,
:
=
,
1.8-40%=1.4.
3 |
4 |
3 |
4 |
9 |
16 |
1 |
5 |
1 |
10 |
1 |
10 |
3.75+2.25=6,
1 |
2 |
1 |
3 |
5 |
6 |
5 |
12 |
1 |
15 |
2 |
9 |
8+7.2-12.3=2.9,
3 |
4 |
3 |
7 |
7 |
4 |
1.8-40%=1.4.
点评:完成本题在保证做题质量的同时要注意提高做题的速度.
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