2 + 5
What is 7?
4 + 6
What is 10?
1 + 8
What is 9?
2 + 7
What is 9?
10 + 8
What is 18?
5 - 2
What is 3?
8 - 4
What is 4?
10 - 6
What is 4?
9 - 3
What is 6?
20 - 10
What is 10?
10 + 20
What is 30?
8 + 7
What is 15?
25 + 25
What is 50?
50 + 50
What is 100?
100 + 100
What is 200?
20 - 6
What is 14?
18 - 6
What is 12?
35 - 23
What is 12?
50 - 15
What is 35?
100 - 48
What is 52?
Addition Families for 5
What is 0+5, 1+4, 2+3?
Addition Family for 4
What is 0+4, 1+3, 2+2?
Addition Family for 8
What is 0+8, 1+7, 2+6, 3+5, 4+4
Addition Family for 10
What is 0+10, 1+9, 2+8, 3+7, 4+6, 5+5
True or False: 7+6 is a fact family for 15.
False! 7 + 6 = 13 so it is a fact family for 13.