题目内容
计算下列各题
(1)-5+6-7+8
(2)
+(-
)+
+(-
)+(-
)
(3)11+(-35)-4×(-6)
(4)-48×(
-
+
-
)
(1)-5+6-7+8
(2)
1 |
2 |
2 |
3 |
4 |
5 |
1 |
2 |
1 |
3 |
(3)11+(-35)-4×(-6)
(4)-48×(
1 |
2 |
5 |
8 |
1 |
3 |
11 |
16 |
(1)原式=(-5-7)+(6+8)
=-12+14
=2;
(2)原式=(
-
)+(-
-
)+
=0-1+
=-
;
(3)原式=11-35+24
=35-35
=0;
(4)原式=-24+30-16+44
=74-40
=34.
=-12+14
=2;
(2)原式=(
1 |
2 |
1 |
2 |
2 |
3 |
1 |
3 |
4 |
5 |
=0-1+
4 |
5 |
=-
1 |
5 |
(3)原式=11-35+24
=35-35
=0;
(4)原式=-24+30-16+44
=74-40
=34.
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