题目内容
| 能简算的要简算. 48×(
| 23-
| ||||||||||||
| 5÷[(
| ||||||||||||
| (
|
(1)48×(
+2)÷
=(48×
+48×2)÷
=(28+96)÷
=124÷
=186;
(2)23-
×
÷
=23-
×
×27
=23-18
=5;
(3)
×7+
×11
=
×(11+7)
=
×18
=10;
(4)5÷[(
+
)×
]
=5÷[
×
]
=5÷
=75;
(5)
×23+
×67
=
×(67+23)
=
×90
=14.4;
(6)(
-
)×
÷
=
×
×5
=1.
| 7 |
| 12 |
| 2 |
| 3 |
=(48×
| 7 |
| 12 |
| 2 |
| 3 |
=(28+96)÷
| 2 |
| 3 |
=124÷
| 2 |
| 3 |
=186;
(2)23-
| 8 |
| 9 |
| 3 |
| 4 |
| 1 |
| 27 |
=23-
| 8 |
| 9 |
| 3 |
| 4 |
=23-18
=5;
(3)
| 5 |
| 9 |
| 5 |
| 9 |
=
| 5 |
| 9 |
=
| 5 |
| 9 |
=10;
(4)5÷[(
| 2 |
| 3 |
| 1 |
| 5 |
| 1 |
| 13 |
=5÷[
| 13 |
| 15 |
| 1 |
| 13 |
=5÷
| 1 |
| 15 |
=75;
(5)
| 4 |
| 25 |
| 4 |
| 25 |
=
| 4 |
| 25 |
=
| 4 |
| 25 |
=14.4;
(6)(
| 1 |
| 2 |
| 1 |
| 6 |
| 3 |
| 5 |
| 1 |
| 5 |
=
| 1 |
| 3 |
| 3 |
| 5 |
=1.
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