题目内容
计算,能简算的要简算.
×
+
×
(
+
)×48
3-
-
×
+
×0.6.
| 5 |
| 8 |
| 3 |
| 4 |
| 1 |
| 4 |
| 5 |
| 8 |
(
| 5 |
| 12 |
| 7 |
| 16 |
3-
| 7 |
| 12 |
| 5 |
| 12 |
| 3 |
| 4 |
| 2 |
| 5 |
| 3 |
| 4 |
(1)
×
+
×
,
=
×(
+
),
=
×1,
=
;
(2)(
+
)×48,
=48×
+48×
,
=20+21,
=41;
(3)3-
-
,
=3-(
+
),
=3-1,
=2;
(4)
×
+
×0.6,
=
×(
+
),
=
×1,
=
.
| 5 |
| 8 |
| 3 |
| 4 |
| 1 |
| 4 |
| 5 |
| 8 |
=
| 5 |
| 8 |
| 3 |
| 4 |
| 1 |
| 4 |
=
| 5 |
| 8 |
=
| 5 |
| 8 |
(2)(
| 5 |
| 12 |
| 7 |
| 16 |
=48×
| 5 |
| 12 |
| 7 |
| 16 |
=20+21,
=41;
(3)3-
| 7 |
| 12 |
| 5 |
| 12 |
=3-(
| 7 |
| 12 |
| 5 |
| 12 |
=3-1,
=2;
(4)
| 3 |
| 4 |
| 2 |
| 5 |
| 3 |
| 4 |
=
| 3 |
| 4 |
| 2 |
| 5 |
| 3 |
| 5 |
=
| 3 |
| 4 |
=
| 3 |
| 4 |
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