35+67+56+712+920+1130+1342.-数学

题目简介

35+67+56+712+920+1130+1342.-数学

题目详情

3
5
+
6
7
+
5
6
+
7
12
+
9
20
+
11
30
+
13
42
题型:解答题难度:中档来源:不详

答案

class="stub"3
5
+class="stub"6
7
+class="stub"5
6
+class="stub"7
12
+class="stub"9
20
+class="stub"11
30
+class="stub"13
42

=class="stub"3
5
+class="stub"6
7
+class="stub"1
2
+class="stub"1
3
+class="stub"1
3
+class="stub"1
4
+class="stub"1
4
+class="stub"1
5
+class="stub"1
5
+class="stub"1
6
+class="stub"1
6
+class="stub"1
7

=class="stub"3
5
+class="stub"6
7
+class="stub"1
2
+class="stub"2
3
+class="stub"1
2
+class="stub"2
5
+class="stub"1
3
+class="stub"1
7

=(class="stub"3
5
+class="stub"2
5
)+(class="stub"6
7
+class="stub"1
7
)+(class="stub"1
2
+class="stub"1
2
)+(class="stub"2
3
+class="stub"1
3
),
=1+1+1+1,
=4.

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