题目内容
脱式计算
÷[
-(
+
)];
÷23+
×
+
.
| 2 |
| 5 |
| 3 |
| 4 |
| 1 |
| 3 |
| 1 |
| 8 |
| 8 |
| 17 |
| 1 |
| 23 |
| 9 |
| 17 |
| 1 |
| 23 |
(1)
÷[
-(
+
)],
=
÷[
-
],
=
÷
,
=
;
(2)
÷23+
×
+
,
=
×
+
×
+
,
=(
+
+1)×
,
=2×
,
=
.
| 2 |
| 5 |
| 3 |
| 4 |
| 1 |
| 3 |
| 1 |
| 8 |
=
| 2 |
| 5 |
| 3 |
| 4 |
| 11 |
| 24 |
=
| 2 |
| 5 |
| 7 |
| 24 |
=
| 48 |
| 35 |
(2)
| 8 |
| 17 |
| 1 |
| 23 |
| 9 |
| 17 |
| 1 |
| 23 |
=
| 8 |
| 17 |
| 1 |
| 23 |
| 1 |
| 23 |
| 9 |
| 17 |
| 1 |
| 23 |
=(
| 8 |
| 17 |
| 9 |
| 17 |
| 1 |
| 23 |
=2×
| 1 |
| 23 |
=
| 2 |
| 23 |
练习册系列答案
相关题目