题目内容
(
|
|
|
|
(1)(
+
)÷
=
×
=
;
(2)
÷(
÷
)
=
÷(
×3)
=
÷
=
×
=
;
(3)
÷14÷
=
×
×
=
;
(4)
÷
+
×
=
×
+
×
=(
+
)×
=3×
=
.
| 2 |
| 17 |
| 1 |
| 3 |
| 5 |
| 51 |
=
| 23 |
| 51 |
| 51 |
| 5 |
=
| 23 |
| 5 |
(2)
| 5 |
| 12 |
| 5 |
| 12 |
| 1 |
| 3 |
=
| 5 |
| 12 |
| 5 |
| 12 |
=
| 5 |
| 12 |
| 5 |
| 4 |
=
| 5 |
| 12 |
| 4 |
| 5 |
=
| 1 |
| 3 |
(3)
| 3 |
| 4 |
| 9 |
| 10 |
=
| 3 |
| 4 |
| 1 |
| 14 |
| 10 |
| 9 |
=
| 5 |
| 84 |
(4)
| 6 |
| 25 |
| 3 |
| 4 |
| 5 |
| 3 |
| 6 |
| 25 |
=
| 6 |
| 25 |
| 4 |
| 3 |
| 5 |
| 3 |
| 6 |
| 25 |
=(
| 4 |
| 3 |
| 5 |
| 3 |
| 6 |
| 25 |
=3×
| 6 |
| 25 |
=
| 18 |
| 25 |
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