问题 填空题
计算:
(1)2-5=______;
(2)2×(-3)=______;
(3)(-2)÷(-
1
3
)=______;
(4)-22×|
1
4
|=______;
(5)2ab-3ab=______;
(6)23°35′+56°40′=______°______′.
答案

(1)2-5=-3;

(2)2×(-3)=-6;

(3)(-2)÷(-

1
3
)=(-2)×(-3)=6;

(4)-22×|

1
4
|=-4×
1
4
=-1;

(5)2ab-3ab=-ab;

(6)23°35′+56°40′=80°15′;

故答案为:-3,-6,6,-1,-ab,80,15.

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