在里填上“>”“<”或“﹦”.38×49______49×3812+54×12______(12+54)×12(15×57)×75______15×(57×75)67×59+59×17______(6

题目简介

在里填上“>”“<”或“﹦”.38×49______49×3812+54×12______(12+54)×12(15×57)×75______15×(57×75)67×59+59×17______(6

题目详情

在里填上“>”“<”或“﹦”.
3
8
×
4
9
______
4
9
×
3
8

1
2
+
5
4
×
1
2
______(
1
2
+
5
4
1
2

(
1
5
×
5
7
7
5
______
1
5
×(
5
7
×
7
5
)

6
7
×
5
9
+
5
9
×
1
7
______(
6
7
+
1
7
5
9
题型:解答题难度:中档来源:不详

答案

class="stub"3
8
×class="stub"4
9
=class="stub"4
9
×class="stub"3
8

class="stub"1
2
+class="stub"5
4
×class="stub"1
2
(class="stub"1
2
+class="stub"5
4
)×class="stub"1
2

(class="stub"1
5
×class="stub"5
7
)×class="stub"7
5
=class="stub"1
5
×(class="stub"5
7
×class="stub"7
5
)

class="stub"6
7
×class="stub"5
9
+class="stub"5
9
×class="stub"1
7
=(class="stub"6
7
+class="stub"1
7
)×class="stub"5
9

故答案为:=,>,=,=.

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