题目内容
(1-
-
)÷
×
×2
6÷0.5-9
×
+
×
.
| 1 |
| 2 |
| 1 |
| 4 |
| 1 |
| 4 |
| 3 |
| 8 |
| 5 |
| 6 |
| 2 |
| 3 |
6÷0.5-9
| 1 |
| 14 |
| 1 |
| 3 |
| 1 |
| 14 |
| 2 |
| 3 |
(1)(1-
-
)÷
,
=(1-
-
)×4,
=1×4-
×4-
×4,
=4-2-1,
=1;
(2)
×
×2
,
=
×
×
,
=
×
×
,
=1×
,
=
;
(3)6÷0.5-9,
=12-9,
=3;
(4)
×
+
×
,
=
×(
+
),
=
×1,
=
.
| 1 |
| 2 |
| 1 |
| 4 |
| 1 |
| 4 |
=(1-
| 1 |
| 2 |
| 1 |
| 4 |
=1×4-
| 1 |
| 2 |
| 1 |
| 4 |
=4-2-1,
=1;
(2)
| 3 |
| 8 |
| 5 |
| 6 |
| 2 |
| 3 |
=
| 3 |
| 8 |
| 5 |
| 6 |
| 8 |
| 3 |
=
| 3 |
| 8 |
| 8 |
| 3 |
| 5 |
| 6 |
=1×
| 5 |
| 6 |
=
| 5 |
| 6 |
(3)6÷0.5-9,
=12-9,
=3;
(4)
| 1 |
| 14 |
| 1 |
| 3 |
| 1 |
| 14 |
| 2 |
| 3 |
=
| 1 |
| 14 |
| 1 |
| 3 |
| 2 |
| 3 |
=
| 1 |
| 14 |
=
| 1 |
| 14 |
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