题目内容
填空:
(1)(-27)÷9=______;(2)(-
)÷(-
)÷(-
)=______;
(3)1÷(-9)=______;(4)0÷(-7)=______;
(5)
÷(-1)=______;(6)-0.25÷
=______.
(1)(-27)÷9=______;(2)(-
| 9 |
| 25 |
| 3 |
| 10 |
| 3 |
| 10 |
(3)1÷(-9)=______;(4)0÷(-7)=______;
(5)
| 4 |
| 3 |
| 3 |
| 4 |
(1)(-27)÷9=-3;
(2)原式=(-
)×(-
)=
;
(3)原式=1×(-
)=-
;
(4)0÷(-7)=0;
(5)原式=
×(-1)=-
;
(6)原式=-
×
=-
.
(2)原式=(-
| 9 |
| 25 |
| 10 |
| 3 |
| 6 |
| 5 |
(3)原式=1×(-
| 1 |
| 9 |
| 1 |
| 9 |
(4)0÷(-7)=0;
(5)原式=
| 4 |
| 3 |
| 4 |
| 3 |
(6)原式=-
| 1 |
| 4 |
| 4 |
| 3 |
| 1 |
| 3 |
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