Fact Families
Skip count by 3's, 6's, and 9's, five times.
_, _, _, _, _
_, _, _, _, _
_, _, _, _, _
3, 6, 9, 12, 15, 18
6, 12, 18, 24, 30, 36
9, 18, 27, 36, 45, 54
What is a product?
The answer to a multiplication problem.
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2x5=10
Convert the repeated addition question into a multiplication equation, and solve:
3+3+3+3+3 =
3 x 5= 15
OR
5 x 3 = 15
Write a multiplication equation with the answer:
There are 4 students in the classroom. Each student has 1 pencil. How many pencils are there in total?
4 x 1 = 4
OR
1 x 4 =4
Fill in the blanks:
If 9 x _ = 18
Then 18 divided by __ = 9
9 x 2 = 18
18 divided by 2 is 9
What is multiplication?
Repeated addition.
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2x12=24
Convert the repeated addition question into a multiplication equation, and solve:
4+4+4+4+4+4=
4 x 6 =24
or
6 x 4 = 24
Write a multiplication equation with the answer:
9 students won 2 lucky numbers each. How many lucky numbers did they all win?
9 x 2 = 18
OR
2 x 9 = 18
Write as many multiplication equations as you can that equal 18.
1 x 18= 18
2 x 9=18
3 x 6=18
6 x 3=18
9 x 2=18
What is a factor?
One of the numbers being multiplied together in a multiplication problem.
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3x11=33
Convert the multiplication equation into a repeated addition equation, and solve:
5 x 6 =
6 + 6 + 6 + 6 + 6 = 30
OR
5 + 5 + 5 + 5 + 5 + 5 = 30
Write a multiplication equation with the answer:
Only three people went to the park each day. How many people showed up to the park after seven days?
3 x 7 = 21
OR
7 x 3 = 21
Write a fact family using 24 as one of your numbers.
1 x 24 = 24
2 x 12 = 24
3 x 8 = 24
4 x 6 =24
What are the 3 multiplication strategies we discussed?
Arrays
Doubling
Skip counting
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00000000
7x8=56
Convert the multiplication equation into a repeated addition equation, and solve:
9 x 6 =
6+6+6+6+6+6+6+6+6 = 54
OR
9 + 9 + 9 + 9 + 9 +9 = 54
Write a multiplication equation with the answer:
7 friends each found 6 acorns. How many acorns did they all find?
7 x 6 = 42
OR
6 x 7 = 42
Fill in the blank:
4 x _ = 24
What division sentence would go with this fact family?
4 x 6 = 24
When looking at an array, how do you know what factor to write first in a multiplication equation?
The number of rows determines the first factor.
The number in each row determines the second factor.
Draw an array for 6x9.
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Convert the repeated addition question into a multiplication equation, and solve:
7 + 7 + 7 + 7 + 7 + 7 + 7 =
7 x 7= 49
Give the multiplication equation with the answer:
If there were eight people in a classroom on Monday and seven people in a classroom on Tuesday, how many fingers were there in the classroom on Monday?
8 (students) x 10(fingers each) = 80