题目内容
计算.
4
|
| ||||||||||||||||||
(1
| [1
|
4
÷
-3
×1
=
×
-
×
=
-
=
=3
;
(1
-1
)÷(6-
)×4
=
÷
×
=
×
×
=
;
×25
-20
÷5+5
=
×
-
×
+5
=
-
+5
=
-
+5
=42
;
[1
×(1
-
)+5
]÷3
)
=[
×
+
]÷
=
×
=
.
| 1 |
| 6 |
| 5 |
| 8 |
| 3 |
| 8 |
| 1 |
| 15 |
=
| 25 |
| 6 |
| 8 |
| 5 |
| 26 |
| 8 |
| 16 |
| 15 |
=
| 20 |
| 3 |
| 52 |
| 15 |
=
| 48 |
| 15 |
=3
| 1 |
| 5 |
(1
| 2 |
| 3 |
| 2 |
| 5 |
| 2 |
| 7 |
| 2 |
| 7 |
=
| 4 |
| 15 |
| 40 |
| 7 |
| 30 |
| 7 |
=
| 4 |
| 15 |
| 7 |
| 40 |
| 30 |
| 7 |
=
| 1 |
| 5 |
| 4 |
| 5 |
| 5 |
| 8 |
| 5 |
| 12 |
| 1 |
| 6 |
=
| 4 |
| 5 |
| 205 |
| 8 |
| 245 |
| 12 |
| 1 |
| 5 |
| 1 |
| 6 |
=
| 41 |
| 2 |
| 49 |
| 12 |
| 1 |
| 6 |
=
| 492 |
| 12 |
| 49 |
| 12 |
| 2 |
| 12 |
=42
| 1 |
| 12 |
[1
| 1 |
| 5 |
| 1 |
| 2 |
| 2 |
| 3 |
| 3 |
| 5 |
| 1 |
| 7 |
=[
| 6 |
| 5 |
| 5 |
| 6 |
| 8 |
| 5 |
| 22 |
| 7 |
=
| 13 |
| 5 |
| 7 |
| 22 |
=
| 91 |
| 110 |
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