题目内容
(1)0.25×(-2)3-[4÷(-
)2+1]+(-1)2010
(2)-1100-(1-0.5)×
×[3-(-3)2]
(3)(-
+
-
)÷(
)
(4)(-
m3n-6nm)-(
nm3-6mn).
| 2 |
| 3 |
(2)-1100-(1-0.5)×
| 1 |
| 3 |
(3)(-
| 1 |
| 6 |
| 3 |
| 4 |
| 1 |
| 12 |
| 1 |
| 48 |
(4)(-
| 18 |
| 7 |
| 3 |
| 7 |
(1)原式=
×(-8)-(4×
+1)+1
=-2-10+1
=-11;
(2)原式=-1-
×
×(-6)
=-1-(-1)
=-1+1
=0;
(3)原式=(-
+
-
)×48
=-8+36-4
=24;
(4)原式=-
m3n-6mn-
m3n+6mn
=-3m3n.
| 1 |
| 4 |
| 9 |
| 4 |
=-2-10+1
=-11;
(2)原式=-1-
| 1 |
| 2 |
| 1 |
| 3 |
=-1-(-1)
=-1+1
=0;
(3)原式=(-
| 1 |
| 6 |
| 3 |
| 4 |
| 1 |
| 12 |
=-8+36-4
=24;
(4)原式=-
| 18 |
| 7 |
| 3 |
| 7 |
=-3m3n.
练习册系列答案
相关题目