Count by 10's
What is 10 more than 12?
22
What is 10 less than 69?
59
What is 5 tens and 9 ones?
59
What is 10 more than 77?
87
Miss Ebbens' class has 13 boys and Mrs. Martin's class has 18 boys. How many boys are there altogether?
31
What is 10 less than 100?
90
Miss Ebbens had 35 cookies and gave Mrs. Martin 17 cookies. How many cookies does Miss Ebbens have left?
18 cookies
What is 10 more than 110?
120