Vocabulary
Addition and subtraction facts that use the same 3 numbers.
Fact Family or Related Facts
3 + 3 =
6
5 + ____ = 12
7
2 + 2 + 8 =
12
Anna has 12 books. She gives 3 away. How many books does she have now?
12 - 3 = 9 books
The numbers you add together in an addition sentence
5 + 6 =
11
4 + ____ = 10
6
3 + 3 + 7 =
13
LJ, Ava, and Levi each eat 2 slices of pizza. How much pizza do they eat in all?
2 + 2 + 2 = 6 pizza slices
The answer to an addition problem
Sum
9 + 9 =
18
8 + ____ = 20
12
6 + 5 + 4 +
15
Arianna had 12 beads. She lost some of them. Now she has 7 beads. How many beads did Arianna lose?
She lost 5 beads
The answer to a subtraction problem
Difference
7 + 8=
15
9 + ____ = 19
10
10 + 4 + 4 =
18
8 + 2 = 10 flowers
10 - 5 = 5 flowers
22
4 + ____ = 12
8
9 + 9 + 1
19
Ian collected 6 rocks. He already had 9 rocks. He lost 3 rocks. How many rocks does Ian have now?
6 + 9 = 15
15 - 3 = 12
12 rocks