问题 解答题

计算下列各题

(1)-12-25;

(2)0-(-8);

(3)12-(-18)+(-7)-15;

(4)(-18)÷2÷(-16);

(5)(-2)+|3|-5;

(6)(-1)100×5+(-2)4÷4.

答案

(1)-12-25=-37;

(2)0-(-8)=8;

(3)12-(-18)+(-7)-15

=12+18-7-15

=30-22

=8;

(4)(-18)÷2÷(-16)

=9÷16

=

9
16

(5)(-2)+|3|-5

=-2+3-5

=-4;

(6)(-1)100×5+(-2)4÷4

=1×5+16÷4

=5+4

=9.

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单项选择题