Add Three Numbers in Equations
1st Grade Math practice: Solve: 4 + 7 + 3 = . Part of addition strategies: within 20 (Addition Strategies: Within 20).
~9 min
To solve 2 + 5 + 3, you can add 2 + 3 first to get 5, then 5 + 5 = 10. Or add 2 + 5 = 7, then 7 + 3 = 10.

