题目内容
根据算式填算理.
(1)
+
=______
______个
加______个
是______个
,就是
.
(2)
-
=______
______个
减______个
,剩______个
,就是
.
(3)1-
=______个______减______个
,剩______个
,就是
.
(1)
| 3 |
| 7 |
| 2 |
| 7 |
______个
| 1 |
| 7 |
| 1 |
| 7 |
| 1 |
| 7 |
| () |
| () |
(2)
| 5 |
| 8 |
| 2 |
| 8 |
______个
| 1 |
| 8 |
| 1 |
| 8 |
| 1 |
| 8 |
| () |
| () |
(3)1-
| 2 |
| 3 |
| 1 |
| 3 |
| 1 |
| 3 |
| () |
| () |
(1)
+
=
3个
加2个
是5个
,就是
.
(2)
-
=
5个
减2个
,剩3个
,就是
.
(3)1-
=3个
减2个
,剩1个
,就是
.
故答案为:(1)
,3,2,5,
.
(2)
,5,2,3,
.
(3)3,
,2,1,
.
| 3 |
| 7 |
| 2 |
| 7 |
| 5 |
| 7 |
3个
| 1 |
| 7 |
| 1 |
| 7 |
| 1 |
| 7 |
| 5 |
| 7 |
(2)
| 5 |
| 8 |
| 2 |
| 8 |
| 3 |
| 8 |
5个
| 1 |
| 8 |
| 1 |
| 8 |
| 1 |
| 8 |
| 3 |
| 8 |
(3)1-
| 2 |
| 3 |
| 1 |
| 3 |
| 1 |
| 3 |
| 1 |
| 3 |
| 1 |
| 3 |
故答案为:(1)
| 5 |
| 7 |
| 5 |
| 7 |
(2)
| 3 |
| 8 |
| 3 |
| 8 |
(3)3,
| 1 |
| 3 |
| 1 |
| 3 |
练习册系列答案
相关题目