Katherine and shally had $288 altogether. katherine gave 1/3 of her share to shally and their father gave $68 to shally. they now have the same amount of
money. how much money did shally have at first?

If you draw a tape diagram and split it into thirds one third is Shally' s and 2 thirds is Katherine's since 3 units equals 288 1 unit equals 288 divided by 3 = 96 per unit since Shally has one third each third equals 96 so Shally started with $ 96

                                                      OR

              divide 288 with 3 thirds like that so you can still keep your unit the same to get 1 thirds helping of $ 96 which Shally only had one third  that equals $ 96 so Shally started with $ 96