Factor Pairs
What are the factor pairs of 12?
The factor pairs of 12 are
1 and 12 and 2 and 6 and 3 and 4.
What are the first 5 multiples of 4?
4, 8,12,16, 20
Which is not a prime number? 3, 5, 7 or 9
9 is not a prime number. (9 has more than 1 factor pair: 1 and 9, 3 and 3.)
32 is 4 times as many as?
8
The blue table has 5 kids. Each kid brings in 5 pens.
The green table has 4 kids. Each kid brings in 7 pens.
How many pens do both tables have in all?
5x5 = 25
4x7 = 28
25+28 = 53 pens
What are the factor pairs of 18?
The factor pairs of 18 are 1 and 18, 2 and 9, 3 and 6.
What are the first 5 multiples of 6?
6, 12,18,24, and 30
Which is a composite number? 7, 17, 27, or 29
27 is a composite number. (It has more than 1 factor pair: 1 and 27, 3 and 9)
7
The giant is 54 feet tall. He is 9 times as tall as the man.
How tall is the man?
9 x ? = 54
The man is 6 feet tall.
What are the factor pairs of 20?
The factor pairs of 20 are 1 and 20, 2 and 10, and 4 and 5.
What are the first 5 multiples of 8?
The first 5 multiples of 8 are 8, 16, 24, 32, and 40.
Which is not a composite number? 36, 51, 48, or 50
51 is not a composite number. (It has only 1 factor pair: 1 and 51)
90 is 9 times as many as?
10
The red table has 4 kids. Each kid brings in 6 folders.
The purple table has 6 kids. Each kid brings in 5 folders.
Which table brought in more folder? How much more?
Red table 4x6 = 24 folders
Purple table 6x5 = 30 folders
Purple table brought 6 more folders.
What are the factor pairs of 50?
The factor pairs of 50 are
1 and 50, 2 and 25, 5 and 10.
What are 5 multiples of 12?
5 multiples of 12 are 12, 24, 36, 48, and 60.
Other multiples of 12 not shown will counted as correct.
80 is not a prime number. (It has more than 1 factor pair: 1 and 80, 2 and 40, 5 and 16, 8 and 10)
64 is 8 times as many as?
8
Miss Gipe went to buy new science supplies. The microscope was $32. The plants were $8. How many times more expensive was the microscope than the plants?
The microscope was 4 times more expensive than the plants.
What are all the factors pairs of 36?
The factor pairs of 36 are
1 and 36, 2 and 18, 3 and 12, 4 and 9, and 6 and 6.
What are 5 multiples of 30?
5 multiples of 30 are 30, 60, 90, 120, and 150.
Other multiples of 30 not shown will counted as correct.
Which number is neither prime or composite?
1 is neither Prime nor Composite because it has ONLY ONE factor, 1.
45 is 5 times as many as?
9
Chi Chi is 6 inches tall. Her cage is 8 times as tall as she is. How tall is her cage in FEET?
6x8 = 48 inches or 4 feet