1. How many? A. 1 B. 3 C. 2 D. 4 Hint 2. Write four in standard form. A. 5 B. 2 C. 3 D. 4 Hint 3. The chairs in Anna’s class have numbers on them. Help Anna put the chairs in order. A. 1, 2, 4, 3 B. 1, 2, 3, 4 C. 2, 1, 3, 4 D. 4, 1, 3, 2 Hint 4. How many?___ ones = ___ tens A. 50 ones = 4 tens B. 30 ones = 4 tens C. 40 ones = 5 tens D. 40 ones = 4 tens Hint 5. Find the sum.3 tens, 9 ones___ + ___ = ___ A. 30 + 9 = 39 B. 30 + 5 = 35 C. 20 + 9 = 29 D. 30 + 3 = 33 Hint 6. Which number is seventy-three? A. 37 B. 73 C. 70 D. 78 Hint 7. Estimate. Compare to the group of 10. A. about 75 B. about 15 C. about 40 D. about 100 Hint 8. How many squares should come next in the pattern? A. 4 B. 7 C. 5 D. 6 Hint 9. How many rectangles should come next in the pattern? A. 6 B. 5 C. 7 D. 8 Hint 10. Add. A. 4 B. 6 C. 7 D. 5 Hint 11. Find the sum.3 + 4 = ___4 + 3 = ___ A. 6 B. 8 C. 5 D. 7 Hint 12. Find 1 + 1. A. 3 B. 1 C. 0 D. 2 Hint 13. Find the sums.4 + 4 = ___4 + 3 = ___ A. 9, 7 B. 8, 10 C. 7, 9 D. 8, 7 Hint 14. Find the missing number.1 + ___ = 66 − ___ = 1 A. 3 B. 6 C. 4 D. 5 Hint 15. How many are in the group that has more? A. 1 B. 4 C. 3 D. 2 Hint 16. Find the sum.30 + 33 = ___ A. 65 B. 63 C. 64 D. 62 Hint 17. Find the sum.81 + 8 = ___ A. 89 B. 88 C. 86 D. 87 Hint 18. Find the sum. A. 34 B. 35 C. 33 D. 36 Hint 19. Which addition problem checks the subtraction problem? A. B. C. D. Hint 20. Round each number to the nearest ten. Estimate the difference. A. 40 B. 20 C. 30 D. 10 Hint