1What number completes 7 + ____ = 10?
28 is made from 3 and what number?
3What number completes 4 + ____ = 18?
4What number completes 9 + ____ = 15?
5Fill the blank: ____ + 5 = 16.
6What number completes 1 + ____ = 18?
7What number completes 4 + ____ = 8?
88 is made from 4 and what number?
9Fill the blank: ____ + 14 = 16.
10Fill the blank: ____ + 9 = 13.
