Support learners as they build confidence solving larger addition problems. **Topics Included:** • Thank You • Addition challenge add three numbers 1 • Addition challenge add three numbers 15 • Addition practice add three numbers 21 • Compare the sums add three numbers 13 • Compare the sums add three numbers 38 • Find the sum add three numbers 25 • Find the sum add three numbers 27 • Missing number addition add three numbers 10 • True or false addition add three numbers 49 • True or false addit