题目内容
计算.
|
| ||||||||||||
|
| ||||||||||||
(40-35×
| [
|
(1)
÷
×
,
=
×
×
,
=
;
(2)
÷
÷
,
=
×
×
,
=
;
(3)
×8÷
,
=
×8×
,
=28;
(4)
÷
÷4,
=
×16×
,
=
;
(5)(40-35×
)÷
,
=(40-10)×
,
=30×
,
=27;
(6)[
-(
+
)]×
,
=[
-
-
]×
,
=[
-
]×
,
=
×
,
=
.
| 1 |
| 3 |
| 10 |
| 3 |
| 3 |
| 2 |
=
| 1 |
| 3 |
| 3 |
| 10 |
| 3 |
| 2 |
=
| 3 |
| 20 |
(2)
| 5 |
| 7 |
| 3 |
| 5 |
| 7 |
| 5 |
=
| 5 |
| 7 |
| 5 |
| 3 |
| 5 |
| 7 |
=
| 125 |
| 147 |
(3)
| 3 |
| 4 |
| 3 |
| 14 |
=
| 3 |
| 4 |
| 14 |
| 3 |
=28;
(4)
| 5 |
| 8 |
| 1 |
| 16 |
=
| 5 |
| 8 |
| 1 |
| 4 |
=
| 5 |
| 2 |
(5)(40-35×
| 2 |
| 7 |
| 10 |
| 9 |
=(40-10)×
| 9 |
| 10 |
=30×
| 9 |
| 10 |
=27;
(6)[
| 19 |
| 20 |
| 9 |
| 20 |
| 1 |
| 3 |
| 2 |
| 5 |
=[
| 19 |
| 20 |
| 9 |
| 20 |
| 1 |
| 3 |
| 2 |
| 5 |
=[
| 1 |
| 2 |
| 1 |
| 3 |
| 2 |
| 5 |
=
| 1 |
| 6 |
| 2 |
| 5 |
=
| 1 |
| 15 |
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