题目内容
计算:
(1)(-18)÷2
×
÷(-16);
(2)4+3×(-2)3+33;
(3)30÷(
-
).
(1)(-18)÷2
| 1 |
| 4 |
| 4 |
| 9 |
(2)4+3×(-2)3+33;
(3)30÷(
| 1 |
| 5 |
| 1 |
| 6 |
(1)(-18)÷2
×
÷(-16)
=18×
×
×
=
.
(2)4+3×(-2)3+33
=4+3×(-8)+27
=-20+27
=7.
(3)30÷(
-
)
=30÷
=900.
| 1 |
| 4 |
| 4 |
| 9 |
=18×
| 4 |
| 9 |
| 4 |
| 9 |
| 1 |
| 16 |
=
| 2 |
| 9 |
(2)4+3×(-2)3+33
=4+3×(-8)+27
=-20+27
=7.
(3)30÷(
| 1 |
| 5 |
| 1 |
| 6 |
=30÷
| 1 |
| 30 |
=900.
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