Question

Mr. lumber got asked his third grade class to name the rule for the following number patterns.

573, 579, 585, 591, 597,...

What is the rule:
Add 3
Add 6
Add 7
Add 9

Answer 1

Add 6

Explanation:

If you see the equations 573+6=579

579+6=585

585+6=591

591+6=597

they all are added by 6

Answer 2

You always get from one term to the next by adding 6:

`573 + 6 = 579`

`579 + 6 = 585`

`585 + 6 = 591`

`591 + 6 = 597`

So, the rule is "add 6"