比较大小,用“<”“>”“=”填空:(1)-0.02______1;(2)-(-34)______-34;(3)-227______-3.14;(4)-45______-[+(-0.75)].-数学

题目简介

比较大小,用“<”“>”“=”填空:(1)-0.02______1;(2)-(-34)______-34;(3)-227______-3.14;(4)-45______-[+(-0.75)].-数学

题目详情

比较大小,用“<”“>”“=”填空:
(1)-0.02______1;
(2)-(-
3
4
)______-
3
4

(3)-
22
7
______-3.14;
(4)-
4
5
______-[+(-0.75)].
题型:填空题难度:中档来源:不详

答案

(1)∵-0.02<0,1>0,
∴-0.02<1.
故答案为:<;

(2)∵-(-class="stub"3
4
)=class="stub"3
4
>0,-class="stub"3
4
<0,
∴-(-class="stub"3
4
)>-class="stub"3
4

故答案为:>;

(3)∵|-class="stub"22
7
|=class="stub"22
7
≈3.142>|-3.14|=3.14,
∴-class="stub"22
7
<-3.14;

(4)∵-[+(-0.75)]=0.75>0,-class="stub"4
5
<0,
∴-class="stub"4
5
<0.75,即-class="stub"4
5
<-[+(-0.75)].
故答案为:<.

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