题目内容
计算下面各题,能简算的要简算.
0.6×3.3+
×7.7-0.6
(
+
-
)÷
×[
(
-
)]
÷[(
-
)×8].
0.6×3.3+
| 3 |
| 5 |
(
| 2 |
| 3 |
| 5 |
| 7 |
| 1 |
| 2 |
| 1 |
| 42 |
| 9 |
| 10 |
| 5 |
| 9 |
| 1 |
| 2 |
| 1 |
| 6 |
| 8 |
| 27 |
| 1 |
| 3 |
| 1 |
| 4 |
(1)0.6×3.3+
×7.7-0.6,
=0.6×3.3+0.6×7.7-0.6,
=(3.3+7.7-1)×0.6,
=10×0.6,
=6;
(2)(
+
-
)÷
,
=(
+
-
)×42,
=
×42+
×42-
×42,
=28+30-21,
=37;
(3)
×[
×(
-
)],
=
×
×(
-
),
=
×(
-
),
=
×
,
=
;
(4)
÷[(
-
)×8],
=
÷[
×8],
=
÷
,
=
×
,
=
.
| 3 |
| 5 |
=0.6×3.3+0.6×7.7-0.6,
=(3.3+7.7-1)×0.6,
=10×0.6,
=6;
(2)(
| 2 |
| 3 |
| 5 |
| 7 |
| 1 |
| 2 |
| 1 |
| 42 |
=(
| 2 |
| 3 |
| 5 |
| 7 |
| 1 |
| 2 |
=
| 2 |
| 3 |
| 5 |
| 7 |
| 1 |
| 2 |
=28+30-21,
=37;
(3)
| 9 |
| 10 |
| 5 |
| 9 |
| 1 |
| 2 |
| 1 |
| 6 |
=
| 9 |
| 10 |
| 5 |
| 9 |
| 1 |
| 2 |
| 1 |
| 6 |
=
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 6 |
=
| 1 |
| 2 |
| 1 |
| 3 |
=
| 1 |
| 6 |
(4)
| 8 |
| 27 |
| 1 |
| 3 |
| 1 |
| 4 |
=
| 8 |
| 27 |
| 1 |
| 12 |
=
| 8 |
| 27 |
| 2 |
| 3 |
=
| 8 |
| 27 |
| 3 |
| 2 |
=
| 4 |
| 9 |
练习册系列答案
相关题目