题目内容
| 计算下面各题,怎样简便就怎样计算. 0.75×
| 0.25×4÷0.25×4 | (
| ||||||||||||
0.6÷
| 50-7.5-1.3-1.2 | (
|
(1)0.75×
+
×
,
=0.75×(
+
),
=0.75×1,
=0.75;
(2)0.25×4÷0.25×4,
=0.25÷0.25×(4×4),
=1×16,
=16;
(3)(
+
)×13+4÷17,
=(
+
)×13+
,
=
×13+
×13+
,
=1
+(
+
),
=1
+1,
=2
;
(4)0.6÷
+
×
-60%,
=0.6×
+
×0.6-0.6,
=0.6×(
+
-1),
=0.6×2,
=1.2;
(5)50-7.5-1.3-1.2,
=50-(7.5+1.3+1.2),
=50-10,
=40;
(6)(
-
+
)×36,
=
×36-
×36+
×36,
=18-12+6,
=12.
| 5 |
| 11 |
| 6 |
| 11 |
| 3 |
| 4 |
=0.75×(
| 5 |
| 11 |
| 6 |
| 11 |
=0.75×1,
=0.75;
(2)0.25×4÷0.25×4,
=0.25÷0.25×(4×4),
=1×16,
=16;
(3)(
| 1 |
| 10 |
| 1 |
| 17 |
=(
| 1 |
| 10 |
| 1 |
| 17 |
| 4 |
| 17 |
=
| 1 |
| 10 |
| 1 |
| 17 |
| 4 |
| 17 |
=1
| 3 |
| 10 |
| 13 |
| 17 |
| 4 |
| 17 |
=1
| 3 |
| 10 |
=2
| 3 |
| 10 |
(4)0.6÷
| 7 |
| 13 |
| 8 |
| 7 |
| 3 |
| 5 |
=0.6×
| 13 |
| 7 |
| 8 |
| 7 |
=0.6×(
| 13 |
| 7 |
| 8 |
| 7 |
=0.6×2,
=1.2;
(5)50-7.5-1.3-1.2,
=50-(7.5+1.3+1.2),
=50-10,
=40;
(6)(
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 6 |
=
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 6 |
=18-12+6,
=12.
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