Presentation Transcript
Fact Families: Fact Families By Monica Yuskaitis
Definitions: Definitions Addend - Any number being added.
6 + 5 = 11
Inverse Operation - An opposite operation that undoes another.
5 + 4 = 9 9 - 5 = 4
Addition/Subtraction Fact Families are found by:: Addition/Subtraction Fact Families are found by: Starting with a simple addition fact. ( 2 + 5 = 7)
Changing the addends around.
(5 + 2 = 7)
Writing the Inverse operations for both.
(7 - 2 = 5 andamp; 7 - 5 = 2)
What are the 4 members of the Fact Family of 3 + 4 = 7?: What are the 4 members of the Fact Family of 3 + 4 = 7? 3 + 4 = 7
4 + 3 = 7
7 - 3 = 4
7 - 4 = 3
What are the 4 members of the Fact Family of 8 + 1 = 9?: What are the 4 members of the Fact Family of 8 + 1 = 9? 8 + 1 = 9
1 + 8 = 9
9 - 8 = 1
9 - 1 = 8
What are the 4 members of the Fact Family of 11 + 5 = 16?: What are the 4 members of the Fact Family of 11 + 5 = 16? 11 + 5 = 16
5 + 11 = 16
16 - 11 = 5
16 - 5 = 11
What are the 4 members of the Fact Family of 9 + 7 = 16?: What are the 4 members of the Fact Family of 9 + 7 = 16? 9 + 7 = 16
7 + 9 = 16
16 - 9 = 7
16 - 7 = 9
What are the 4 members of the Fact Family of 12 + 7 = 19?: What are the 4 members of the Fact Family of 12 + 7 = 19? 12 + 7 = 19
7 + 12 = 19
19 - 12 = 7
19 - 7 = 12
Definitions: Definitions Factors - The numbers being multiplied.
4 x 8 = 32
Inverse Operation - An opposite operation that undoes another.
4 x 8 = 32 32  4 = 8
Multiplication/Division Fact Families are found by:: Multiplication/Division Fact Families are found by: Starting with a simple multiplication fact. ( 3 x 9 = 27)
Changing the factors around.
(9 x 3 = 27)
Writing the Inverse operations for both.
(27  3 = 9 andamp; 27  9 = 3)
What are the 4 members of the Fact Family of 3 x 7 = 21?: What are the 4 members of the Fact Family of 3 x 7 = 21? 3 x 7 = 21
7 x 3 = 21
21  3 = 7
21  7 = 3
What are the 4 members of the Fact Family of 6 x 4 = 24?: What are the 4 members of the Fact Family of 6 x 4 = 24? 6 x 4 = 24
4 x 6 = 24
24  6 = 4
24  4 = 6
What are the 4 members of the Fact Family of 7 x 8 = 56?: What are the 4 members of the Fact Family of 7 x 8 = 56? 7 x 8 = 56
8 x 7 = 56
56  7 = 8
56  8 = 7
What are the 4 members of the Fact Family of 9 x 7 = 63?: What are the 4 members of the Fact Family of 9 x 7 = 63? 9 x 7 = 63
7 x 9 = 63
63  9 = 7
63  7 = 9
What are the 4 members of the Fact Family of 6 x 7 = 42?: What are the 4 members of the Fact Family of 6 x 7 = 42? 6 x 7 = 42
7 x 6 = 42
42  6 = 7
42  7 = 6