No student devices needed. Know more
6 questions
What is the unknown number?
17-8=?
8+?=17
What is the unknown number?
11-3=?
3+?=11
What is the unknown number?
8-5=?
5+?=8
What is the unknown number?
14-7=?
7+?=14
What is the related addition fact for
15-9=6
9+6=15
10+5=15
15-6=9
8+7=15
What is the related addition fact for
14-6=8
14-8=6
8+6=14
13+1=14
8+5=13
Explore all questions with a free account