题目内容
| 计算. 4-
|
| 3-
| 1÷
|
(1)4-
×(
+
)
=4-
×
=4-
=
;
(2)
×
×
=
×
=
;
(3)3-
×
+
=3-
+
=2
+
=2
;
(4)1÷
÷
=1×1000×100
=100000.
| 6 |
| 5 |
| 2 |
| 3 |
| 3 |
| 2 |
=4-
| 6 |
| 5 |
| 13 |
| 6 |
=4-
| 13 |
| 5 |
=
| 7 |
| 5 |
(2)
| 4 |
| 15 |
| 5 |
| 21 |
| 3 |
| 18 |
=
| 4 |
| 63 |
| 3 |
| 18 |
=
| 2 |
| 189 |
(3)3-
| 1 |
| 7 |
| 5 |
| 6 |
| 1 |
| 14 |
=3-
| 5 |
| 42 |
| 1 |
| 14 |
=2
| 37 |
| 42 |
| 1 |
| 14 |
=2
| 20 |
| 21 |
(4)1÷
| 1 |
| 1000 |
| 1 |
| 100 |
=1×1000×100
=100000.
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