1.   Count on to add. You can use the number line.

12 + 2 = ___

   
    A. 13 B. 12
    C. 14 D. 11
    Hint

  2.   Count on to add. You can use the number line.

6 + 1 = ___

   
    A. 8 B. 5
    C. 7 D. 9
    Hint

  3.   Count on to add. You can use the number line.

3 + 2 = ___

   
    A. 4 B. 6
    C. 5 D. 7
    Hint

  4.   Count on to add. You can use the number line.

___ = 9 + 2

   
    A. 10 B. 7
    C. 12 D. 11
    Hint

  5.   Count on to add. You can use the number line.___ = 11 + 1

   
    A. 10 B. 12
    C. 13 D. 9
    Hint