题目内容
用>,<,= 号填空
-0.02_____1 _______
-(- )_______ _______
-0.02_____1 _______
-(- )_______ _______
(1) < (2) > (3) = (4) <
(1)(4)根据正数大于负数可直接比较大小,(2)(3)先把分数化为小数的形式再比较大小.
解答:解:(1)-0.02<1;
(2)=0.8,=0.75,∴> ;
(3)-(-)==0.75,-[+(-0.75)]=-(-0.75)=0.75,∴-(-)=-[+(-0.75)];
(4)<3.14.
解答:解:(1)-0.02<1;
(2)=0.8,=0.75,∴> ;
(3)-(-)==0.75,-[+(-0.75)]=-(-0.75)=0.75,∴-(-)=-[+(-0.75)];
(4)<3.14.
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