题目内容
计算下列各题(能简算的要简算)
(
-
)÷
× 43+
×36+
×(
÷
)
÷[
×(
+
)].
(
| 1 |
| 18 |
| 1 |
| 54 |
| 1 |
| 54 |
| 7 |
| 8 |
| 7 |
| 8 |
| 7 |
| 8 |
| 5 |
| 9 |
| 3 |
| 4 |
| 1 |
| 10 |
| 8 |
| 15 |
| 1 |
| 25 |
| 2 |
| 5 |
| 1 |
| 10 |
(1)(
-
)÷
,
=(
-
)×54,
=
×54-
×54,
=3-1,
=2,
(2)
× 43+
×36+
,
=
×(43+36+1),
=
×80,
=70,
(3))
×(
÷
),
=
×(
×10),
=
×
,
=4
,
(4))
÷[
×(
+
)],
=
÷(
×
),
=
÷
,
=26
.
| 1 |
| 18 |
| 1 |
| 54 |
| 1 |
| 54 |
=(
| 1 |
| 18 |
| 1 |
| 54 |
=
| 1 |
| 18 |
| 1 |
| 54 |
=3-1,
=2,
(2)
| 7 |
| 8 |
| 7 |
| 8 |
| 7 |
| 8 |
=
| 7 |
| 8 |
=
| 7 |
| 8 |
=70,
(3))
| 5 |
| 9 |
| 3 |
| 4 |
| 1 |
| 10 |
=
| 5 |
| 9 |
| 3 |
| 4 |
=
| 5 |
| 9 |
| 15 |
| 2 |
=4
| 1 |
| 6 |
(4))
| 8 |
| 15 |
| 1 |
| 25 |
| 2 |
| 5 |
| 1 |
| 10 |
=
| 8 |
| 15 |
| 1 |
| 25 |
| 1 |
| 2 |
=
| 8 |
| 15 |
| 1 |
| 50 |
=26
| 2 |
| 3 |
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