题目内容
计算下列各式:
(1)(
+
)÷
-
×
+
(2)6
-2
×1
+3
÷
(3)1÷[8
-(8.5-4×1
)]
(4)(3.75-
×
)÷
.
(1)(
| 1 |
| 4 |
| 1 |
| 6 |
| 1 |
| 2 |
| 2 |
| 3 |
| 1 |
| 4 |
| 1 |
| 6 |
(2)6
| 2 |
| 7 |
| 2 |
| 3 |
| 4 |
| 8 |
| 1 |
| 3 |
| 5 |
| 9 |
(3)1÷[8
| 3 |
| 4 |
| 7 |
| 8 |
(4)(3.75-
| 8 |
| 15 |
| 9 |
| 2 |
| 27 |
| 20 |
(1)(
| 1 |
| 4 |
| 1 |
| 6 |
| 1 |
| 2 |
| 2 |
| 3 |
| 1 |
| 4 |
| 1 |
| 6 |
=
| 5 |
| 12 |
| 1 |
| 2 |
| 2 |
| 3 |
| 1 |
| 4 |
| 1 |
| 6 |
=
| 5 |
| 6 |
| 1 |
| 6 |
| 1 |
| 6 |
=
| 5 |
| 6 |
(2)6
| 2 |
| 7 |
| 2 |
| 3 |
| 4 |
| 8 |
| 1 |
| 3 |
| 5 |
| 9 |
=6
| 2 |
| 7 |
=2
| 2 |
| 7 |
=8
| 2 |
| 7 |
(3)1÷[8
| 3 |
| 4 |
| 7 |
| 8 |
=1÷[8
| 3 |
| 4 |
| 15 |
| 2 |
=1÷[8
| 3 |
| 4 |
=1÷7
| 3 |
| 4 |
=
| 4 |
| 31 |
(4)(3.75-
| 8 |
| 15 |
| 9 |
| 2 |
| 27 |
| 20 |
=(3.75-
| 12 |
| 5 |
| 27 |
| 20 |
=
| 27 |
| 20 |
| 27 |
| 20 |
=1.
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