Factors
Draw arrays to find all the factor pairs of 8.
1 row of 8.
8 rows of 1.
2 rows of 4.
4 rows of 2.
List the first 5 multiples of the number 5
5, 10, 15, 20, 25
Is the number 13 prime or composite?
Prime
521+345=
866
45x33=
1,485
Find all the factor pairs of the number 12.
1 and 12
2 and 6
3 and 4
List the first 10 multiples of the number 3
3, 6, 9, 12, 15, 18, 21, 24, 27, 30
Is the number 25 prime or composite?
2,345+6,531=
8,876
45 divided by 5=
9
What is the definition of the word factor?
Factors are two numbers that multiply together to get a multiple (product).
How do you find multiples?
Skip count
Is 5 prime or composite? How do you know?
Prime because only 1x5=5
500-129=
371
Solve Using Partial Products:
2,142 x 6=
12,852
Find the factors of the following numbers:
45
56
45: 1, 3, 5, 9, 15, 45
56: 1, 2, 4, 7, 8, 14, 28, 56
Find five multiples of 7
7, 14, 21, 28, 35
Is 49 prime or composite? How do you know
Composite because
1x49=49
7x7=49
768-229=
539
122 divided by 2=
61
A car dealership has to park 34 cars in rectangular arrays.
What are the different ways the valet could park the cards?
1 row of 34 cars
34 rows of 1 car
2 rows of 17 cars
17 rows of 2 cars
They get bigger. The multiple monster makes it bigger!
What is a prime number?
What is a composite number?
A prime number is a number that only has two factors: 1, and itself.
A composite number is a number that has more than two factors.
8,231-99=
8,132
What is Mrs. Johnson's favorite animal?
Turtle