1. How many? A. 11 B. 8 C. 10 D. 9 Hint 2. Find 3 − 2. A. 0 B. 5 C. 2 D. 1 Hint 3. Subtract. Use the number line.6 − 2 = ___ A. 5 B. 3 C. 4 D. 8 Hint 4. Subtract. Use the number line.9 − 2 = ___ A. 12 B. 7 C. 8 D. 11 Hint 5. Find the difference.6 − 6 = ___6 − 0 = ___ A. 6, 1 B. 0, 5 C. 0, 6 D. 6, 0 Hint 6. Find the difference.1 − 1 = ___1 − 0 = ___ A. 1, 0 B. 1, 1 C. 0, 1 D. 0, 0 Hint 7. Find the missing numbers.5 + ___ = 1010 − 5 = ___ A. 4 B. 5 C. 3 D. 6 Hint 8. Find 2 − 1. A. 1 B. 0 C. 3 D. 2 Hint 9. Find the missing numbers.7 + 3 = ______ − 7 = 3 A. 12 B. 10 C. 11 D. 9 Hint 10. Find the missing numbers.2 + 9 = ______ − 2 = 9 A. 13 B. 10 C. 11 D. 12 Hint 11. Find the missing numbers.___ + 1 = 66 − ___ = 1 A. 6 B. 3 C. 4 D. 5 Hint 12. Find the missing numbers.___ + 6 = 1414 − ___ = 6 A. 6 B. 7 C. 8 D. 9 Hint 13. Complete the fact family.___ − 8 = 5      5 + 8 = ___ ___ − 5 = 8      8 + 5 = ___ A. 13 B. 14 C. 11 D. 12 Hint 14. Complete the fact family.___ − 8 = 6      8 + 6 = ___ ___ − 6 = 8      6 + 8 = ___ A. 14 B. 13 C. 12 D. 15 Hint