1Fill the blank: ____ + 8 = 20.
28 is made from 4 and what number?
3What number completes 9 + ____ = 17?
4What number completes 12 + ____ = 15?
5What number completes 2 + ____ = 9?
615 is made from 8 and what number?
7What number completes 10 + ____ = 16?
8Fill the blank: ____ + 8 = 10.
9Fill the blank: ____ + 5 = 13.
10What number completes 1 + ____ = 11?
