In the 4th grade you learn about decimals,division,and angle . and a load more stuff than you expected . My favorite part about 4th grade math was learning division. It help you tremendously in 4th grade math. My least favorite part about 4th grade math was subtraction having to regroup it just flat out stresses me out. My strength in 4th grade math was multiplication,division,and addition. My weaknesses are problem solving . In the 5th grade i want to learn how to add a fraction . My sister said that adding a fraction is easy once you get the hang of it . so I really want to learn about that next year.