题目内容
计算:
(1)
-
(2)
+
-
(3)
+
×
(4)
+(1-
)0
(5)(
-
)(
+
)+2
(6)
.
(1)
1.44 |
1.21 |
(2)
8 |
32 |
2 |
(3)
|
27 |
9 |
(4)
2
| ||||
|
3 |
(5)(
5 |
7 |
5 |
7 |
(6)
1452-242 |
(1)原式=1.2-1.1
=0.1;
(2)原式=2
+4
-
=5
;
(3)原式=
+3
×3
=
;
(4)原式=
+1
=5+1
=6;
(5)原式=5-7+2
=0;
(6)原式=
=
=
×
=13×11
=143.
=0.1;
(2)原式=2
2 |
2 |
2 |
=5
2 |
(3)原式=
| ||
3 |
3 |
=
28
| ||
3 |
(4)原式=
4
| ||||
|
=5+1
=6;
(5)原式=5-7+2
=0;
(6)原式=
(145+24)(145-24) |
=
169×121 |
=
169 |
121 |
=13×11
=143.
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