( 8.5) 67.116 ) Can someone help me with this step by step

3382-299=3383- ? fill in the blank?

Sandy is ordering bread rolls for her party,she wants 3/5 of the rolls to be whole wheat. what other factions can represent part of the rolls that will be whole wheat? shade the models to show your work.

James was playing a game with his friends. he won 35 points. then he lost 15, lost 40 and won 55. how did he come out