比较下面各组数的大小.13______3729______170.45______276058______7923______0.750.5______580.65______5647______59

题目简介

比较下面各组数的大小.13______3729______170.45______276058______7923______0.750.5______580.65______5647______59

题目详情

比较下面各组数的大小.
1
3
______
3
7

2
9
______
1
7

0.45______
27
60

5
8
______
7
9

2
3
______0.75
0.5______
5
8

0.65______
5
6

4
7
______
5
9

5
6
______
2
3
题型:填空题难度:中档来源:不详

答案

(1)class="stub"1
3
=class="stub"7
21
class="stub"3
7
=class="stub"9
21

所以:class="stub"1
3
class="stub"3
7


(2)class="stub"2
9
=class="stub"14
63
class="stub"1
7
class="stub"9
63

所以:class="stub"2
9
class="stub"1
7


(3)class="stub"27
60
=0.45,
所以:0.45=class="stub"27
60


(4)class="stub"5
8
=class="stub"45
72
class="stub"7
9
=class="stub"56
72

所以:class="stub"5
8
class="stub"7
9


(5)class="stub"2
3
≈0.67,
所以:class="stub"2
3
<0.75;

(6)class="stub"5
8
=0.625,
所以:0.5<class="stub"5
8


(7)class="stub"5
6
≈0.83,
所以:0.65<class="stub"5
6


(8)class="stub"4
7
=class="stub"36
63
class="stub"5
9
=class="stub"35
63

所以:class="stub"4
7
class="stub"5
9


(9)class="stub"2
3
=class="stub"4
6

所以:class="stub"5
6
class="stub"2
3

故答案为:<,>,=,<,<,<,<,<,>

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