计算:(1)0?(?711)(2)(-1.9)+3.6+(-10.1)+1.4(3)|-16|+|-24|-|-30|(4)-5×8×(-7)×(-0.2

2025-05-22 13:13:54
推荐回答(1个)
回答1:

(1)原式=0+

7
11
=
7
11

(2)原式=-1.9-10.1+3.6+1.4=-12+5=-7;
(3)原式=16+24-30=40-30=10;
(4)原式=-5×8×0.25×7=-70;
(5)原式=0+1+1-
3
7
+5-
4
7
+4=10;
(6)原式=-
2
3
-
3
4
+1
1
2
+
3
4
-2+
2
3
=-
1
2