问题 解答题
计算题:
(1)(-26.54)+(-6.4)-18.54+6.4;
(2)(-2)4×(-1
1
2
2+(-3)3÷1
4
5

(3)-
1
12
+(0.3×3
1
3
+
1
3
)÷|-4|.
答案

(1)(-26.54)+(-6.4)-18.54+6.4

=(-26.54)-18.54+(-6.4)+6.4

=-45.08;

(2)(-2)4×(-1

1
2
2+(-3)3÷1
4
5

=16×

9
4
-27×
5
9

=36-15

=21;

(3)-

1
12
+(0.3×3
1
3
+
1
3
)÷|-4|

=-

1
12
+(1+
1
3
)÷4

=-

1
12
+
4
3
÷4

═-

1
12
+
1
3

=

1
4

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