题目内容
计算下列各题,写出必要的计算过程.
| 24×(
| (
| 75-25×
|
(1)
×14×
,
=
,
=3
;
(2)24×(
-
),
=24×
-24×
,
=6-4,
=2;
(3)(
-
)×
,
=
×
,
=
;
(4)75-25×
.
=75-10,
=65.
| 1 |
| 3 |
| 3 |
| 4 |
=
| 7 |
| 2 |
=3
| 1 |
| 2 |
(2)24×(
| 1 |
| 4 |
| 1 |
| 6 |
=24×
| 1 |
| 4 |
| 1 |
| 6 |
=6-4,
=2;
(3)(
| 1 |
| 2 |
| 1 |
| 5 |
| 4 |
| 5 |
=
| 3 |
| 10 |
| 4 |
| 5 |
=
| 6 |
| 25 |
(4)75-25×
| 2 |
| 5 |
=75-10,
=65.
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