题目内容
用你喜欢的方法计算下面各题.
(8.8-23.4×
)÷
64×12.5×25
5.526-4.84+4.474-3.16
24×(
+
-
)
(8.8-23.4×
| 1 |
| 3 |
| 5 |
| 9 |
64×12.5×25
5.526-4.84+4.474-3.16
24×(
| 1 |
| 3 |
| 5 |
| 6 |
| 3 |
| 4 |
(1)(8.8-23.4×
)÷
,
=(8.8-7.8)÷
,
=1×
,
=1
;
(2)64×12.5×2.5,
=(8×12.5)×(2.5×8),
=100×20,
=2000;
(3)5.526-4.84+4.474-3.16,
=(5.526+4.474)-(4.84+3.16),
=10-8,
=2;
(4)24×(
+
-
),
=24×
+24×
-24×
,
=8+20-18,
=10.
| 1 |
| 3 |
| 5 |
| 9 |
=(8.8-7.8)÷
| 5 |
| 9 |
=1×
| 9 |
| 5 |
=1
| 4 |
| 5 |
(2)64×12.5×2.5,
=(8×12.5)×(2.5×8),
=100×20,
=2000;
(3)5.526-4.84+4.474-3.16,
=(5.526+4.474)-(4.84+3.16),
=10-8,
=2;
(4)24×(
| 1 |
| 3 |
| 5 |
| 6 |
| 3 |
| 4 |
=24×
| 1 |
| 3 |
| 5 |
| 6 |
| 3 |
| 4 |
=8+20-18,
=10.
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