题目内容
| 直接写出得数: 7+
|
|
|
|
12-
| ||||||||||||||||||||
9-
|
|
6.3×0.5= |
|
0.37÷0.37= |
分析:①运用加法结合律简算;②④⑦⑨通分计算;③分子相加,分母不变;⑤运用减法的性质简算;⑥运用加法结合律简算;⑧先算63×5,然后在结果中从后向前数出两位,点上小数点即可;⑩一个数除以本身,得数为1.
解答:解:7+
+
=8;
-
=
;
+
=
;
-
=
; 12-
-
=11;
9-
+
=9;
-
=
; 6.3×0.5=3.15;
+
=
; 0.37÷0.37=1;
故答案为:8,
,
,
,11,9,
,3.15;
,1.
| 1 |
| 4 |
| 3 |
| 4 |
| 5 |
| 6 |
| 1 |
| 2 |
| 1 |
| 3 |
| 2 |
| 3 |
| 2 |
| 3 |
| 4 |
| 3 |
| 1 |
| 2 |
| 1 |
| 5 |
| 3 |
| 10 |
| 1 |
| 2 |
| 1 |
| 2 |
9-
| 1 |
| 6 |
| 1 |
| 6 |
| 4 |
| 5 |
| 1 |
| 2 |
| 3 |
| 10 |
| 5 |
| 9 |
| 1 |
| 3 |
| 8 |
| 9 |
故答案为:8,
| 1 |
| 3 |
| 4 |
| 3 |
| 3 |
| 10 |
| 3 |
| 10 |
| 8 |
| 9 |
点评:完成此题,注意通分,运用所学定律或性质简算.
练习册系列答案
相关题目