Find Missing Addend (Sum to 10)
1st Grade Math practice: 7 + ? = 9. Part of addition strategies: within 20 (Addition Strategies: Within 20).
~8 min
In 4 + ? = 10, what number is missing?
1st Grade Math practice: 7 + ? = 9. Part of addition strategies: within 20 (Addition Strategies: Within 20).
In 4 + ? = 10, what number is missing?