What does “in steps of + a certain number” mean?

It was in this video. Here is the context:

After tha they will have to count backwards from 1022 in steps of 13.

  • The reason for choosing 13 there is that ordinary people would find that quite difficult - they'd have to think / calculate each step value, whereas for "easy" numbers like 2 or 10 most of us could do it quite easily without considering it a test of "mental arithmetic". So I guess the After that... bit implies they'd being doing something earlier that might be expected to affect "mental agility", so timing whether and how quickly they could recite the correct values would be an easy way to test how much of an effect whatever they did had. Oct 8, 2018 at 17:10

1 Answer 1


Count to 100 by fours (or in steps of 4): 4, 8, 12, 16, 20, 24...

Count backwards from 100 in steps of 6: 100, 94, 88, 82, ...

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .