题目内容
能简算的要简算
248-25
| 12×(
| ||||||||||||
6.25×6+3×6
| 1
| ||||||||||||
(9
|
(1)248-25
-22.05,
=248-(25
+22.05),
=248-47.5,
=200.5;
(2)12×(
+
-
),
=12×
+12×
-12×
,
=3+2-4,
=1;
(3)6.25×6+3×6
+625%,
=6.25×(6+3+1),
=6.25×10,
=62.5;
(4)1
×(2
-
)+17
÷
,
=1
×1
+17
÷
,
=1
×(1
+17
),
=1
×18
,
=24.5;
(5)(9
-3
-1
)×
,
=(9
-5)×
,
=4
×
,
=1
.
| 9 |
| 20 |
=248-(25
| 9 |
| 20 |
=248-47.5,
=200.5;
(2)12×(
| 1 |
| 4 |
| 1 |
| 6 |
| 1 |
| 3 |
=12×
| 1 |
| 4 |
| 1 |
| 6 |
| 1 |
| 3 |
=3+2-4,
=1;
(3)6.25×6+3×6
| 1 |
| 4 |
=6.25×(6+3+1),
=6.25×10,
=62.5;
(4)1
| 4 |
| 17 |
| 2 |
| 3 |
| 3 |
| 4 |
| 11 |
| 12 |
| 17 |
| 21 |
=1
| 4 |
| 17 |
| 11 |
| 12 |
| 11 |
| 12 |
| 17 |
| 21 |
=1
| 4 |
| 17 |
| 11 |
| 12 |
| 11 |
| 12 |
=1
| 4 |
| 17 |
| 11 |
| 6 |
=24.5;
(5)(9
| 8 |
| 11 |
| 5 |
| 14 |
| 9 |
| 14 |
| 1 |
| 4 |
=(9
| 8 |
| 11 |
| 1 |
| 4 |
=4
| 8 |
| 11 |
| 1 |
| 4 |
=1
| 2 |
| 11 |
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