题目内容
计算下面各题.(能简算的要简算.)
| 16×2.5×
| (
|
(1)
+
×
=
+
=
;
(2)16×2.5×
=40×
=100;
(3)(
-
+
)×60
=
×60-
×60+
×60
=30-12+25
=43.
| 1 |
| 5 |
| 4 |
| 5 |
| 2 |
| 7 |
=
| 1 |
| 5 |
| 8 |
| 35 |
=
| 3 |
| 7 |
(2)16×2.5×
| 5 |
| 2 |
=40×
| 5 |
| 2 |
=100;
(3)(
| 1 |
| 2 |
| 1 |
| 5 |
| 5 |
| 12 |
=
| 1 |
| 2 |
| 1 |
| 5 |
| 5 |
| 12 |
=30-12+25
=43.
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