题目内容
脱式计算
275+25÷5-100
76×1.04+1.04×25-1.04
(
-
)×24-
0.75×
+
×
.
275+25÷5-100
76×1.04+1.04×25-1.04
(
| 7 |
| 12 |
| 3 |
| 8 |
| 5 |
| 9 |
0.75×
| 5 |
| 9 |
| 3 |
| 4 |
| 4 |
| 9 |
(1)275+25÷5-100,
=275+5-100,
=280-100,
=180;
(2)76×1.04+1.04×25-1.04,
=(76+25-1)×1.04,
=100×1.04,
=104;
(3)(
-
)×24-
,
=
×24-
×24-
,
=14-9-
,
=5-
,
=4
;
(4)0.75×
+
×
,
=
×(
+
),
=
×1,
=
.
=275+5-100,
=280-100,
=180;
(2)76×1.04+1.04×25-1.04,
=(76+25-1)×1.04,
=100×1.04,
=104;
(3)(
| 7 |
| 12 |
| 3 |
| 8 |
| 5 |
| 9 |
=
| 7 |
| 12 |
| 3 |
| 8 |
| 5 |
| 9 |
=14-9-
| 5 |
| 9 |
=5-
| 5 |
| 9 |
=4
| 4 |
| 9 |
(4)0.75×
| 5 |
| 9 |
| 3 |
| 4 |
| 4 |
| 9 |
=
| 3 |
| 4 |
| 5 |
| 9 |
| 4 |
| 9 |
=
| 3 |
| 4 |
=
| 3 |
| 4 |
练习册系列答案
相关题目