题目内容
计算下面各题，能简算的要简算．
+
+
+
4-
-
1
-
+3
-
．
| 5 |
| 8 |
| 5 |
| 6 |
| 3 |
| 8 |
| 1 |
| 6 |
4-
| 12 |
| 17 |
| 5 |
| 12 |
1
| 4 |
| 9 |
| 7 |
| 13 |
| 7 |
| 9 |
| 6 |
| 13 |
①
+
+
+
，
=（
+
）+（
+
），
=1+1，
=2；
②4-
-
，
=3
-
，
=3
-
，
=2
，
③1
-
+3
-
，
=1
+3
-（
+
），
=5
-1，
=4
．
| 5 |
| 8 |
| 5 |
| 6 |
| 3 |
| 8 |
| 1 |
| 6 |
=（
| 5 |
| 8 |
| 3 |
| 8 |
| 5 |
| 6 |
| 1 |
| 6 |
=1+1，
=2；
②4-
| 12 |
| 17 |
| 5 |
| 12 |
=3
| 5 |
| 17 |
| 5 |
| 12 |
=3
| 60 |
| 204 |
| 85 |
| 204 |
=2
| 179 |
| 204 |
③1
| 4 |
| 9 |
| 7 |
| 13 |
| 7 |
| 9 |
| 6 |
| 13 |
=1
| 4 |
| 9 |
| 7 |
| 9 |
| 7 |
| 13 |
| 6 |
| 13 |
=5
| 2 |
| 9 |
=4
| 2 |
| 9 |
练习册系列答案
相关题目