Archie has 14 post-it notes more than Jaslyn. How many post-it notes must Jaslyn get from Archie so that she has 22 post-it notes more than him?

	Archie	Jaslyn
Comparing Archie and Jaslyn at first	14 more
Before
Change	- ?	+ ?
After
Comparing Archie and Jaslyn in the end		22 more

If Archie gives 14 post-it notes to Jaslyn, she will have 14 more post-it notes than him. However, Jaslyn must have 22 more post-it notes than Archie in the end. So, Archie has to give Jaslyn more post-it notes.

Number of more post-it notes that Archie has to give to Jaslyn
= (22 - 14) ÷ 2
= 8 ÷ 2
= 4

So after giving 14 post-it notes to Jaslyn, Archie has to give her another 4 more post-it notes so that she has 22 post-it notes more than him.

Total number of post-it notes that Jaslyn needs to get from Archie
= 14 + 4
= 18

Answer(s): 18