Fact Families
The missing number in this fact family
2, 10, ?
5
Solve the equation:
3 x 4 = ?
12
Fred had 10 apples. He wanted to give them equally to his 2 friends. How many apples does each friend get? Draw equal groups to solve.
Drawing should show two groups of 5
Each friend gets 5 apples.
What is the answer to a multiplication problem called?
product
6x9=54
9x6=54
9 divided by 6 = 54
6 divided by 9 = 54
Solve the equation:
60 divided by 6 = ?
10
Nancy was excited for the holidays and decided to bake some cookies. She baked 24 cookies and wanted to give 6 to each neighbor. How many neighbors was she able to give cookies to? Solve with any method.
4 neighbors
What is the answer to a division problem called?
quotient
An example of a fact family that only has 2 equations
Anything with repeating factors
Find the missing number:
48 = ? x 4
12
Bonnie was a collector of shells. She had a huge collection of 72 shells in her pile. She wanted to put them equally into 8 buckets. How many shells did she put in each bucket? Solve using the equal groups model along with an equation.
9 shells in each bucket
8 x ? = 72
OR 72 divided by 8 = ?
What do you multiply to get a product?
factors
Write 4 equations for the following fact family:
7, 63, 9
7x9=63
9x7=63
63 divided by 9 = 7
63 divided by 7 = 9
8 x p = 40
5
Daisy bought 16 oranges at the market. She went to another store and decided to buy 12 more. She took all her oranges and put them equally into 4 bags to give away to her friends. How many oranges did she put in each bag? Show your work.
16 + 12 = 28
28 divided by 4 = 7
7 oranges in each bag
What do we divide a dividend by?
divisor
11, 132, ?
12
11x12=132
12x11=132
132 divided by 11 = 12
132 divided by 12 = 11
Solve for possible m:
84 divided by m = 7
m = 12
Bob went on a hike and collected 42 rocks for his 7 friends. As he was coming down the hill, he fell and lost 6 of his rocks! If he wanted to give 6 rocks to each friend, will all 7 friends get rocks? If not, how many friends will get rocks?
No, only 6 of his friends would get rocks.
42-6 = 36
36 divided by 6 = 6
Name all 4 operations and the word for the answers for each operation
addition - sum
subtraction - difference
multiplication - product
division - quotient