Vocabulary
What is a factor pair?
Two numbers that multiply together to get a product
What are the factor pairs of 16?
1, 2, 4, 4, 8,16
Which of the following is a multiple of 9?
a. 3
b. 16
c. 49
d. 63
D. 63
True or False:
11 is a prime number.
True, only one set of factor pairs, 1 and itself
After one week Max had 3 bags of marbles. After two weeks he had 6 bags of marbles. After three weeks he had 9 bags. If Max received the same amount of bags each week, how many bags of marbles will he have after 5 weeks?
15
What is a multiple?
A number that results from multiplying a number by another number
a. 3, 8
b. 4, 6
c. 2, 3, 4
d. 5,7
D
What are the first 5 multiples of 7?
7, 14, 21, 28, 35
True or False:
16 is a prime number? how do you know?
False, has more than 2 factor pairs.
Markers are sold in boxes of 6 and boxes of 7. Maya needs 70 markers for her class project. Which size boxes of markers and how many should Maya buy?
Maya should by 10 boxes with 7 markers in each box.
What is a prime number?
a number that has exactly two factor pairs, one and itself.
Which statement is true?
a. The only factors of 22 are 1 and 22.
b. The only factors of 21 are 1 and 21.
c. THe only factors of 12 are 1 and 12.
d. The only factors of 11 are 1 and 11.
D.
What are the first 10 multiples of 6.
6, 12, 18, 24, 30, 36, 42, 48, 54, 60
The number 36 is a _______ number because _____________
Composite number; it has factors other than 1 and itself.
Han wants to buy 48 pens for his class. Which packages of pens and how many should Han buy if he doesn't want any extra? Select TWO that apply.
a. Han should buy 2 packages with 12 pens in each package
b. Han should buy 8 packages with 6 pens in each package
c. Han should buy 18 packages with 30 pens in each
d. Han should buy 4 packages with 12 pens in each
B and D
What is a composite number?
a whole number that has more than 2 factor pairs.
Which number is a factor of both 21 and 30?
3
9, 18, 27, 36, 45, 54, 63, 72, 81, 90
Which is not a prime number?
a. 71
b. 73
c. 77
d. 79
c. 77
Mrs. Smith wrote a prime number on the board. Which of the following numbers could be the number she wrote?
A. 12
B. 8
C. 7
D. 14
C. 7
What is a factor?
a number that when multipled with another produces a product.
What are all the Factor Pairs of 56?
1, 2, 4, 7, 8, 14, 28, 56
What are the first 3 multiples of 15?
15, 30, 45
List 3 prime numbers.
varies
6 ways