题目内容
| 240÷600×100%= |
|
| ||||||||||||||||||
12×(
| (
|
|
(1)240÷600×100%,
=0.4×100%,
=0.4;
(2)
×
+
,
=
+
,
=1;
(3)
÷
÷5,
=
×
,
=
;
(4)12×(
+
),
=12×
+12×
,
=8+3,
=11;
(5)(
-
)÷
.
=0÷
,
=0;
(6)
+
÷
+
,
=
+
+
,
=
+
+
,
=1
.
=0.4×100%,
=0.4;
(2)
| 7 |
| 8 |
| 5 |
| 7 |
| 3 |
| 8 |
=
| 5 |
| 8 |
| 3 |
| 8 |
=1;
(3)
| 1 |
| 3 |
| 3 |
| 5 |
=
| 5 |
| 9 |
| 1 |
| 5 |
=
| 1 |
| 9 |
(4)12×(
| 2 |
| 3 |
| 1 |
| 4 |
=12×
| 2 |
| 3 |
| 1 |
| 4 |
=8+3,
=11;
(5)(
| 11 |
| 13 |
| 11 |
| 13 |
| 1 |
| 11 |
=0÷
| 1 |
| 11 |
=0;
(6)
| 4 |
| 5 |
| 1 |
| 5 |
| 4 |
| 5 |
| 1 |
| 5 |
=
| 4 |
| 5 |
| 1 |
| 4 |
| 1 |
| 5 |
=
| 4 |
| 5 |
| 1 |
| 5 |
| 1 |
| 4 |
=1
| 1 |
| 4 |
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