1.   Solve 9 + __ = 13.
    A. 5 B. 6
    C. 4 D. 22
    Hint

  2.   Solve 17 − __ = 9.
    A. 26 B. 9
    C. 10 D. 8
    Hint

  3.   Solve __ − 3 = 12.
    A. 6 B. 9
    C. 15 D. 12
    Hint

  4.   What rule or property is illustrated by 8 + 2 = 2 + 8?
    A. Subtraction Rule B. Identity Property of Addition
    C. Associative Property of Addition D. Commutative Property of Addition
    Hint

  5.   Find 8 + 2 − 4.
    A. 14 B. 2
    C. 10 D. 6
    Hint

  6.   Find 13 + 7 − 7.
    A. 6 B. 13
    C. 27 D. 20
    Hint

  7.   Find the next number in the pattern.

16, 18, 20, 22, 24

    A. 2 B. 27
    C. 26 D. 30
    Hint

  8.   Find the next number in the pattern.

21, 18, 15, 12, 9

    A. 6 B. 5
    C. 12 D. 7
    Hint

  9.   Find the next number in the pattern.

42, 47, 52, 57, 62

    A. 66 B. 72
    C. 5 D. 67
    Hint

  10.   Each ski jacket has 4 zippers. Find the missing value in the table to find how many zippers are needed for 20 ski jackets.

Ski Jackets 48121620
Zippers16324864

    A. 48 B. 72
    C. 80 D. 96
    Hint