题目内容
算一算.
| 5-(
|
|
(1)
-
+
,
=
-
+
,
=
+
,
=
;
(2)5-(
+
),
=5-(
+
),
=5-
,
=4
;
(3)
+(
-
),
=
+
,
=
.
| 7 |
| 8 |
| 5 |
| 12 |
| 3 |
| 4 |
=
| 21 |
| 24 |
| 10 |
| 24 |
| 18 |
| 24 |
=
| 11 |
| 24 |
| 18 |
| 24 |
=
| 29 |
| 24 |
(2)5-(
| 2 |
| 15 |
| 5 |
| 12 |
=5-(
| 8 |
| 60 |
| 25 |
| 60 |
=5-
| 11 |
| 20 |
=4
| 9 |
| 20 |
(3)
| 2 |
| 3 |
| 2 |
| 5 |
| 3 |
| 10 |
=
| 2 |
| 3 |
| 1 |
| 10 |
=
| 23 |
| 30 |
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