比较下面各组数的大小,在○内填上“>”、“<”或“=”.67______57710______71137______25225______1670.7______571.8______59.-数学

题目简介

比较下面各组数的大小,在○内填上“>”、“<”或“=”.67______57710______71137______25225______1670.7______571.8______59.-数学

题目详情

比较下面各组数的大小,在○内填上“>”、“<”或“=”.
6
7
______
5
7

7
10
______
7
11

3
7
______
2
5

2
2
5
______
16
7

0.7______
5
7

1.8______
5
9
题型:解答题难度:中档来源:不详

答案

(1)class="stub"6
7
>class="stub"5
7

(2)class="stub"7
10
>class="stub"7
11

(3)class="stub"3
7
=class="stub"3×5
7×5
=class="stub"15
35

class="stub"2
5
=class="stub"2×7
5×7
=class="stub"14
35

因为class="stub"15
35
>class="stub"14
35

所以class="stub"3
7
>class="stub"2
5

(4)2class="stub"2
5
=class="stub"12
5
=class="stub"12×7
5×7
=class="stub"84
35

class="stub"16
7
=class="stub"16×5
7×5
=class="stub"80
35

因为class="stub"84
35
>class="stub"80
35

所以2class="stub"2
5
class="stub"16
7

(5)0.7=class="stub"7
10
=class="stub"7×7
10×7
=class="stub"49
70

class="stub"5
7
=class="stub"5×10
7×10
=class="stub"50
70

因为class="stub"49
70
<class="stub"50
70
,所以0.7<class="stub"5
7

(6)1.8=class="stub"18
10
=class="stub"18×9
10×9
=class="stub"162
90

class="stub"5
9
=class="stub"5×10
9×10
=class="stub"50
90

因为class="stub"162
90
>class="stub"50
90

所以1.8>class="stub"5
9

故答案为:>、>、>、>、<、>.

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