问题 解答题
计算:
(1)-3-6+9-11+2
(2)(
1
6
-
3
4
+
1
12
)×(-36)
×(-24)
(3)(-10)-(-10)×
1
2
÷2×(-20)
(4)(-1)3-(1-0.5)×
1
3
×[2-(-3)2]

(5)(-12)÷(-
1
12
)÷(-100)
(6)8+(4-5)÷0.1
(7)-14-(1-0.5)×[2-(-3)2]
(8)36×(
1
2
-
1
3
)2

(9)3.14×(-5)+3.14×(-12)+3.14×8
答案

(1)原式=(-3-6-11)+(2+9)

=-20+11

=-9;

(2)原式=

1
6
×(-24)-
3
4
×(-24)+
1
12
×(-24)

=-4+18-2

=14-2

=12;

(3)原式=-10-(-5)×

1
2
×(-20)

=-10-50

=-60;

(4)原式=-1-

1
2
×
1
3
×
(2-9)

=-1+

7
6

=

1
6

(5)原式=(-12)×(-12)×(-

1
100
)

=144×(-

1
100
)

=-1.44;

(6)原式=8+(-1)×10

=8-10

=-2;

(7)原式=-1-

1
2
×(2-9)

=-1+

7
2

=

5
2

(8)原式=36×(

1
6
)2

=36×

1
36

=1;

(9)原式=3.14×(-5-12+8)

=3.14×(-9)

=-28.26.

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