112+334+556+778=______.-数学

题目简介

112+334+556+778=______.-数学

题目详情

1
1
2
+3
3
4
+5
5
6
+7
7
8
=______.
题型:填空题难度:中档来源:不详

答案

1class="stub"1
2
+3class="stub"3
4
+5class="stub"5
6
+7class="stub"7
8

=1+class="stub"1
2
+3+class="stub"3
4
+5+class="stub"5
6
+7+class="stub"7
8

=(1+3+5+7)+(class="stub"1
2
+class="stub"3
4
+class="stub"5
6
+class="stub"7
8

=16+2class="stub"23
24

=18class="stub"23
24

故答案为:18class="stub"23
24

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