109 you can plus like this: (19+1)+20+20+(1+1+18)+4+25
-16
8/18 plus 1/6 = 11/18
it equal 18 (eight- teen)
True. 9 + 8 + 1= 18 and 9 + 1 + 8 =18.
8 + 1 = 9 5 + 4 = 9 9 + 9 = 18 ( 8 + 1 + 5 + 4 = 18) The answer is 18.
43
7/18
209
18
5/18 + -1/6 = 5/18 - 3/18 = 2/18 = 1/9
1/18 + 1/6 is 2/9