Addition
5+10=
15
10-6=
4
20-12=
8
8+ ___ = 16
8
Using these numbers, build the fact family equations:
8 9 17
8+9=17
9+8=17
17-9=8
17-8=9
6+6=
12
9-3=
6
18-9=
9
12-____= 10
2
Using these numbers, build the fact family equations:
9 11 20
9+11=20
11+9=20
20-11=9
20-9=11
8+5=
13
8-5=
3
20-14=
6
___+7= 18
11
Using these three numbers, build the fact family equations:
6 10 16
6+10=16
10+6=16
16-10=6
16-6=10
12+8=
20
10-9=
13
____- 3 = 9
12
Using these three numbers, build the fact family equations:
9 5 14
9+5=14
5+9=14
14-5=9
14-9=5
20+7=
27
7-4=
3
13-9=
4
20-___=15
5
Fill in the blanks to finish the fact family equations:
9+7=___
7+___=16
___-9=7
16-___=9
9+7= 16
7+ 9 =1616 -9 = 7
16 - 7 =9