(1-118×1)+(2-19×1)+(3-118×3)+(4-19×2)+(5-118×5)+(6-19×3).-数学

题目简介

(1-118×1)+(2-19×1)+(3-118×3)+(4-19×2)+(5-118×5)+(6-19×3).-数学

题目详情

(1-
1
18
×1)+(2-
1
9
×1)+(3-
1
18
×3)+(4-
1
9
×2)+(5-
1
18
×5)+(6-
1
9
×3)
题型:解答题难度:中档来源:不详

答案

(1-class="stub"1
18
×1)+(2-class="stub"1
9
×1)+(3-class="stub"1
18
×3)+(4-class="stub"1
9
×2)+(5-class="stub"1
18
×5)+(6-class="stub"1
9
×3)
=(1+2+3+4+5+6)-class="stub"1
18
(1+2+3+4+5+6)
=21-class="stub"21
18

=19class="stub"5
6

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