题目内容
直接写出下列各题的得出.
(1)﹣1+2= _________ ,
(2)﹣2﹣(﹣3)= _________ ,
(3)﹣2﹣2= _________ ,
(4)0﹣2010= _________ ,
(5)1÷(﹣2)×
=_________,
(6)﹣(﹣
)3=_________,
(7)﹣|﹣8|=_________,
(8)15.7÷(﹣
)×0=_________,
(9)(﹣8)×
=_________,
(10)(﹣1)2010=_________.
(1)﹣1+2= _________ ,
(2)﹣2﹣(﹣3)= _________ ,
(3)﹣2﹣2= _________ ,
(4)0﹣2010= _________ ,
(5)1÷(﹣2)×
(6)﹣(﹣
(7)﹣|﹣8|=_________,
(8)15.7÷(﹣
(9)(﹣8)×
(10)(﹣1)2010=_________.
解:(1)原式=1,
(2)原式=﹣2+3=1,
(3)原式=﹣4,
(4)原式=﹣2010,
(5)原式=1×(﹣
)×
=﹣
,
(6)原式=
,
(7)原式=﹣8,
(8)原式=0,
(9)原式=﹣12,
(10)原式=1.
(2)原式=﹣2+3=1,
(3)原式=﹣4,
(4)原式=﹣2010,
(5)原式=1×(﹣
(6)原式=
(7)原式=﹣8,
(8)原式=0,
(9)原式=﹣12,
(10)原式=1.
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