What I learned in 4th grade math is, how to simplify fractions, how do algebra, how to use protractors, and how to buget your money. my least favorite thing to do in math is, algebra. My most favorite thing to do in math is, multiplication. My weakness in math is, experienes. My strength in math is multiplication. What I want to learn more in 5th grade math is, experienes, simplifying fractions, and algebra.