用你喜欢的方法算:14+34×1357×14+34×5778×9+781021÷2512×78(35+34)÷3537÷711+47×117.-数学

题目简介

用你喜欢的方法算:14+34×1357×14+34×5778×9+781021÷2512×78(35+34)÷3537÷711+47×117.-数学

题目详情

用你喜欢的方法算:
1
4
+
3
4
×
1
3

5
7
×
1
4
+
3
4
×
5
7
7
8
×9+
7
8
10
21
÷
25
12
×
7
8
3
5
+
3
4
)÷
3
5
3
7
÷
7
11
+
4
7
×
11
7
题型:解答题难度:中档来源:不详

答案

(1)class="stub"1
4
+class="stub"3
4
×class="stub"1
3

=class="stub"1
4
+class="stub"1
4

=class="stub"1
2


(2)class="stub"5
7
×class="stub"1
4
+class="stub"3
4
×class="stub"5
7

=(class="stub"1
4
+class="stub"3
4
)×class="stub"5
7

=1×class="stub"5
7

=class="stub"5
7


(3)class="stub"7
8
×9+class="stub"7
8

=(9+1)×class="stub"7
8

=10×class="stub"7
8

=class="stub"35
4


(4)class="stub"10
21
÷class="stub"25
12
×class="stub"7
8

=class="stub"10
21
×class="stub"7
8
×class="stub"12
25

=class="stub"1
5


(5)(class="stub"3
5
+class="stub"3
4
)÷class="stub"3
5

=class="stub"3
5
÷class="stub"3
5
+class="stub"3
4
×class="stub"5
3

=1+1class="stub"1
4

=2class="stub"1
4


(6)class="stub"3
7
÷class="stub"7
11
+class="stub"4
7
×class="stub"11
7

=class="stub"3
7
×class="stub"11
7
+class="stub"4
7
×class="stub"11
7

=(class="stub"3
7
+class="stub"4
7
)×class="stub"11
7

=1×class="stub"11
7

=class="stub"11
7

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