题目内容
计算
(1)0.25÷[
| (2)375+450÷18 | ||||||||
(3)
| (4)(0.75-
|
(1)0.25÷[
| 4 |
| 7 |
| 1 |
| 8 |
=0.25÷[
| 4 |
| 7 |
| 7 |
| 8 |
=0.25÷
| 1 |
| 2 |
=0.5;
(2)375+450÷18,
=375+25,
=400;
(3)
| 9 |
| 8 |
| 4 |
| 3 |
| 2 |
| 3 |
=
| 9 |
| 8 |
| 4 |
| 3 |
| 1 |
| 3 |
=
| 3 |
| 2 |
| 1 |
| 3 |
=
| 11 |
| 6 |
(4)0.75-
| 1 |
| 12 |
=
| 3 |
| 4 |
| 1 |
| 12 |
=
| 2 |
| 3 |
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