1 ,3,1 ,4 ,9,1 ,8,( ) A 18 B 27 C 36 D12

1,3,1,4,9,1,8,( 27)
1+3+1+4=9
1+3+1+4+9+1+8=27
Ans:B

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1. Observe carefully, find out the rule, and then fill in the number 111111111 △ 9 = 123456789 222222222 △ 18= Observe carefully, find out the law, and then fill in the number 111111111÷9=123456789 222222222÷18=123456789 333333333÷27=123456789 （）÷36=123456789 777777777÷（）=（）（）÷（）=（）
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