题目内容
计算下列各题,能简便的要简便计算.
+
÷
6.75×
+3.25÷
(
-
+
)×28
(0.75-
)×(
+
)
| 1 |
| 5 |
| 4 |
| 5 |
| 2 |
| 5 |
6.75×
| 2 |
| 5 |
| 5 |
| 2 |
(
| 11 |
| 14 |
| 5 |
| 7 |
| 5 |
| 28 |
(0.75-
| 3 |
| 16 |
| 2 |
| 9 |
| 1 |
| 3 |
(1)
+
÷
,
=
+
×
,
=
+2,
=2
;
(2)6.75×
+3.25÷
,
=6.75×
+3.25×
,
=(6.75×+3.25)×
,
=10×
,
=4;
(3)(
-
+
)×28,
=
×28-
×28+
×28,
=22-20+5,
=7;
(4)(0.75-
)×(
+
),
=(
-
)×(
+
),
=
×
,
=
.
| 1 |
| 5 |
| 4 |
| 5 |
| 2 |
| 5 |
=
| 1 |
| 5 |
| 4 |
| 5 |
| 5 |
| 2 |
=
| 1 |
| 5 |
=2
| 1 |
| 5 |
(2)6.75×
| 2 |
| 5 |
| 5 |
| 2 |
=6.75×
| 2 |
| 5 |
| 2 |
| 5 |
=(6.75×+3.25)×
| 2 |
| 5 |
=10×
| 2 |
| 5 |
=4;
(3)(
| 11 |
| 14 |
| 5 |
| 7 |
| 5 |
| 28 |
=
| 11 |
| 14 |
| 5 |
| 7 |
| 5 |
| 28 |
=22-20+5,
=7;
(4)(0.75-
| 3 |
| 16 |
| 2 |
| 9 |
| 1 |
| 3 |
=(
| 3 |
| 4 |
| 3 |
| 16 |
| 2 |
| 9 |
| 3 |
| 9 |
=
| 9 |
| 16 |
| 5 |
| 9 |
=
| 5 |
| 16 |
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