题目内容
| 脱式计算，注意使用简便方法． ①
| ②
| ③
| ||||||||||||||||||||||
④
| ⑤
| ⑥
|
①
-（
+
），
=
-
，
=0；
②
-
+
，
=
-
+
，
=
；
③
+（
-
），
=
+
，
=
；
④
+
+
，
=（
+
）+
，
=1+
，
=1
；
⑤
+
+
+
，
=（
+
）+（
+
），
=
+1，
=1
；
⑥
+
+
+
，
=（
+
）+（
+
），
=2+
，
=2
．
| 5 |
| 6 |
| 1 |
| 2 |
| 1 |
| 3 |
=
| 5 |
| 6 |
| 5 |
| 6 |
=0；
②
| 7 |
| 8 |
| 5 |
| 12 |
| 1 |
| 6 |
=
| 21 |
| 24 |
| 10 |
| 24 |
| 4 |
| 24 |
=
| 5 |
| 8 |
③
| 2 |
| 3 |
| 1 |
| 2 |
| 1 |
| 4 |
=
| 2 |
| 3 |
| 1 |
| 4 |
=
| 11 |
| 12 |
④
| 2 |
| 5 |
| 1 |
| 3 |
| 3 |
| 5 |
=（
| 2 |
| 5 |
| 3 |
| 5 |
| 1 |
| 3 |
=1+
| 1 |
| 3 |
=1
| 1 |
| 3 |
⑤
| 1 |
| 4 |
| 1 |
| 3 |
| 1 |
| 4 |
| 2 |
| 3 |
=（
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 3 |
| 2 |
| 3 |
=
| 1 |
| 2 |
=1
| 1 |
| 2 |
⑥
| 9 |
| 7 |
| 1 |
| 8 |
| 3 |
| 8 |
| 5 |
| 7 |
=（
| 9 |
| 7 |
| 5 |
| 7 |
| 1 |
| 8 |
| 3 |
| 8 |
=2+
| 1 |
| 2 |
=2
| 1 |
| 2 |
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