题目内容
简算:
| (15-15×
| (34+
| (
|
(1)
×
+
÷8,
=
×
+
×
,
=
×(
+
),
=
×1,
=
;
(2)(15-15×
)×
,
=3×
,
=
;
(3)(34+
)÷17,
=34÷17+
÷17,
=2+
×
,
=2+
,
=2
;
(4)(
+
)×
÷
,
=(
+
)×
×
,
=
×
,
=
.
| 11 |
| 21 |
| 1 |
| 8 |
| 10 |
| 21 |
=
| 11 |
| 21 |
| 1 |
| 8 |
| 10 |
| 21 |
| 1 |
| 8 |
=
| 1 |
| 8 |
| 11 |
| 21 |
| 10 |
| 21 |
=
| 1 |
| 8 |
=
| 1 |
| 8 |
(2)(15-15×
| 4 |
| 5 |
| 7 |
| 24 |
=3×
| 7 |
| 24 |
=
| 7 |
| 8 |
(3)(34+
| 34 |
| 47 |
=34÷17+
| 34 |
| 47 |
=2+
| 34 |
| 47 |
| 1 |
| 17 |
=2+
| 2 |
| 47 |
=2
| 2 |
| 47 |
(4)(
| 5 |
| 6 |
| 2 |
| 9 |
| 4 |
| 5 |
| 19 |
| 20 |
=(
| 45 |
| 54 |
| 12 |
| 54 |
| 4 |
| 5 |
| 20 |
| 19 |
=
| 57 |
| 54 |
| 16 |
| 19 |
=
| 8 |
| 9 |
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