Related Facts
What is a related subtraction fact to 4 + 5 = 9
9 - 5 = 4 or 9 - 4 = 5
Solve 9 - __ = 4
9 - 5 = 4
If 4 + 4 = 8, then ___ - ____ = ____?
8 - 4 = 4
7 - 3 = ___
4
6 bones because if 6 + 6 = 12 then 12 - 6 = 6.
What is a related addition fact to 11 - 5 = ____
5 + 6 = 11 or 6 + 5 = 11
Solve 16 - ___ = 5
16 - 11 = 5
If 8 + 2 = 10, then ___ - ___ = ___?
10 - 2 = 8 or 10 - 8 = 2
11 - 8 = ___
3
Santa had 19 gifts in his bag. He had a hole and 15 gifts fell out. How many were left in the bag?
4 gifts were left because if you start at 15 you can count up 16, 17, 18, 19.
What are 2 related addition facts to 17 - 9 = ___
Solve 17 - ___ = 14
17 - 3 = 14
If 6 + 7 = 13, then ___ - ___ = ___?
13 - 7 = 6 or 13 - 6 = 7
14 - 6 = ____
8
Mrs. Stewart has 7 pretzels and some crackers too. She has 10 snacks in all. How many crackers does she have?
3 crackers because 7 and 3 are friends of 10.
Write 2 related addition facts and 2 related subtraction facts with the numbers
3 9 6
6 + 3 = 9 and 3 + 6 = 9
9 - 6 = 3 and 9 - 3 = 6
Solve 18 - ___ = 6
18 - 12 = 6
If 9 + 9 = 18, then ___ - ___ = ___?
18 - 9 = 9
17 - 13 = ___
4
There were 10 big pumpkins in the basket and some small ones too. There were 18 pumpkins in the whole basket. How many were small?
8 pumpkins were small because if 10 + 8 = 18 then 18 - 10 = 8.
Write 2 addition and 2 subtraction subtraction equations using the numbers
6 13 19
13 + 6 = 19 and 6 + 13 = 19
19 - 13 = 6 and 19 - 6 - 13
20 - 14 = 6
If 12 + 13 = 25, then ___ - ___ = ___?
25 - 12 = 13 or 25 - 13 = 12
21 - 5 = ____
6
There were 4 dogs laying down at a park and some were running around. There were 20 dogs in all. How many dogs were running around?
16 dogs because if 10 - 4 = 6 then 20 - 4 = 16