题目内容
脱式计算.
| (
|
| (1-
|
①
×
÷
,
=
×
×
,
=
;
②(
-
)÷
,
=
×
,
=
,
③
÷
+
×
,
=
×
+
×
,
=
×(
+
),
=
×2,
=
;
④(1-
)÷(
+
),
=
×2,
=
.
| 5 |
| 9 |
| 6 |
| 25 |
| 3 |
| 10 |
=
| 5 |
| 9 |
| 6 |
| 25 |
| 10 |
| 3 |
=
| 4 |
| 9 |
②(
| 1 |
| 3 |
| 1 |
| 9 |
| 11 |
| 18 |
=
| 2 |
| 9 |
| 18 |
| 11 |
=
| 4 |
| 11 |
③
| 8 |
| 19 |
| 13 |
| 22 |
| 4 |
| 13 |
| 8 |
| 19 |
=
| 8 |
| 19 |
| 22 |
| 13 |
| 4 |
| 13 |
| 8 |
| 19 |
=
| 8 |
| 19 |
| 22 |
| 13 |
| 4 |
| 13 |
=
| 8 |
| 19 |
=
| 16 |
| 19 |
④(1-
| 5 |
| 12 |
| 2 |
| 9 |
| 5 |
| 18 |
=
| 7 |
| 12 |
=
| 7 |
| 6 |
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