› blog › 7th-grade-math-games7th Grade Math Games: Top Exercises & Worksheets - MentalUP Apr 12, 2021 · Free Printable 7th Grade Math Worksheets. With a little practice, even the toughest problems can be solved. Help your 12 year old master math with these free printable 7th grade math worksheets. 1. Adding and Subtracting Fractions. Fraction problems will no longer intimidate your children! They can master them with these fun printables.