题目内容
递等式计算
×
+
×
5-5×
+
[
-(
-
)]÷
.
| 7 |
| 9 |
| 5 |
| 11 |
| 2 |
| 9 |
| 5 |
| 11 |
5-5×
| 2 |
| 5 |
| 3 |
| 5 |
[
| 1 |
| 2 |
| 3 |
| 4 |
| 3 |
| 5 |
| 7 |
| 10 |
(1)
×
+
×
,
=
×(
+
),
=
×1,
=
;
(2)5-5×
+
,
=5-2+
,
=3
;
(3)[
-(
-
)]÷
,
=[
-
]÷
,
=
×
,
=
.
| 7 |
| 9 |
| 5 |
| 11 |
| 2 |
| 9 |
| 5 |
| 11 |
=
| 5 |
| 11 |
| 7 |
| 9 |
| 2 |
| 9 |
=
| 5 |
| 11 |
=
| 5 |
| 11 |
(2)5-5×
| 2 |
| 5 |
| 3 |
| 5 |
=5-2+
| 3 |
| 5 |
=3
| 3 |
| 5 |
(3)[
| 1 |
| 2 |
| 3 |
| 4 |
| 3 |
| 5 |
| 7 |
| 10 |
=[
| 1 |
| 2 |
| 3 |
| 20 |
| 7 |
| 10 |
=
| 7 |
| 20 |
| 10 |
| 7 |
=
| 1 |
| 2 |
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