摘要:19.你来算一算!千万别出错!
网址:http://m.1010jiajiao.com/timu_id_743315[举报]
你来算一算!千万别出错!
(1)计算:
•(-
)-2-(2
-
)0+|-
|+
(2)
-
-
(3)已知x=
+
y,求x2-xy-
+
y2的值.
查看习题详情和答案>>
(1)计算:
| 1 | ||
|
| 1 |
| 2 |
| 2 |
| 3 |
| 32 |
| 1 | ||
|
(2)
| 132-122 |
| 3 |
| ||
| (-2)2 |
(3)已知x=
| 3 |
| 1 |
| 2 |
| 3 |
| 1 |
| 4 |
你来算一算!千万别出错!
(1)-
+
-
+
;
(2)-
×(
-
)×
×(-
);
(3)(-2)3×0.5-(-1.6)2÷(-2)2;
(4)-14÷(-5)2×(-
)+|0.8-1|.
查看习题详情和答案>>
(1)-
| 1 |
| 3 |
| 4 |
| 3 |
| 5 |
| 6 |
| 1 |
| 2 |
(2)-
| 33 |
| 5 |
| 1 |
| 2 |
| 1 |
| 3 |
| 15 |
| 11 |
| 24 |
| 9 |
(3)(-2)3×0.5-(-1.6)2÷(-2)2;
(4)-14÷(-5)2×(-
| 5 |
| 3 |
你来算一算!千万别出错!
(1)2-6÷(-2)×(-
)
(2)-12008+(1-0.5)×
×[2-(-3)2]
(3)
-(
+
)÷(-2)
(4)(-24)×(
-
+
)+(-2)3.
查看习题详情和答案>>
(1)2-6÷(-2)×(-
| 1 |
| 2 |
(2)-12008+(1-0.5)×
| 1 |
| 3 |
(3)
| 1 |
| 30 |
| 2 |
| 3 |
| 3 |
| 5 |
(4)(-24)×(
| 1 |
| 8 |
| 1 |
| 3 |
| 1 |
| 4 |