mathematics

[dengf]

1)1,7,18,26,27,32 2)3,4,19,20,38,48 3)6,7,8,11,20,27 4)7,13,22,29,36,49 5)3,7,14,30,36,47 what formula used in these numbers? what next number?

 

[mmm4444bot]

If you make an effort to show us what you're thinking about these exercises, I'll make an effort to read your post.