Perfect for reinforcing advanced addition skills in Grade 3 math. **Topics Included:** • Thank You • Addition challenge add four numbers 11 • Addition challenge add four numbers 15 • Addition challenge add four numbers 3 • Addition challenge add four numbers 39 • Addition practice add four numbers 17 • Addition practice add four numbers 19 • Addition practice add four numbers 22 • Addition practice add four numbers 40 • Addition practice add four numbers 45 • Addition reasoning add four numbers