Find Missing Minuend (? in ? - 4 = 6)
1st Grade Math practice: ? - 5 = 8. Part of subtraction strategies: within 20 (Subtraction Strategies: Within 20).
~9 min
In ? - 4 = 6, we ended with 6 after taking away 4. What did we start with? Think: 6 + 4 = ?.

