1.   Find the sum.

3 + 3 + 3 + 3 = ___

    A. 12 B. 9
    C. 6 D. 15
    Hint

  2.   Find the missing numbers.

5, ___, 15, 20, ___, 30

    A. 10; 23 B. 9; 27
    C. 12; 25 D. 10; 25
    Hint

  3.   Find the missing numbers.

___, 4, 6, ___, 10, 12

    A. 2; 14 B. 2; 8
    C. 3; 9 D. 1; 7
    Hint

  4.   Write an addition sentence.
   
    A. 8 + 8 + 8 = 16 B. 8 + 8 + 8 = 24
    C. 8 + 8 = 24 D. 8 + 8 = 16
    Hint

  5.   Write an addition sentence.
   
    A. 3 + 3 + 3 + 3 + 3 = 18 B. 3 + 3 + 3 + 3 + 3 + 3 = 15
    C. 3 + 3 + 3 + 3 + 3 = 15 D. 3 + 3 + 3 + 3 + 3 + 3 = 18
    Hint