Is 23 prime or composite?
prime
What are ALL the factors of 15?
1, 3, 5, 15
What are all the factors of 14?
1, 2, 7, 14
Is 36 prime or composite?
composite
4
What is the difference?
235,207 - 67,034
168,173
Write 34,891 in expanded form.
30,000 + 4,000 + 800 + 90 + 1
Write two comparisons that the equation 7 x 8 = 56 shows.
56 is 7 times as many as 8.
56 is 8 times as many as 7.
What is the sum?
45,683 + 2,951 =
48,634
List the first six multiples of 8.
8, 16, 24, 32, 40, 48
a. 8 + 4 = ?
b. 8 - 4 = ?
c. 8 x 4 = ?
d. 8/4 = ?
c
Marla has 32 postcards. Henry has h postcards. Marla has 4 times as many postcards as Henry. Select ALL the correct statements.
a. The number of postcards Henry has can be represented by the expression 32/4.
b. Henry has 6 postcards.
c. The number of postcards Henry has can be found by solving the equation 32 = 4 x h
d. Henry has 8 postcards.
e. The number of postcards henry has can be represented by the expression 32 x 4.
a, c, d
19,500
True of False:
All the factors of 18 are 2, 3, 6, 9, and 18
False
True or False:
2 is the only even prime number.
True
Which of these numbers are composite?:
11, 25, 2, 16, 49, 31
25, 16, 49
What do all the numbers below have in common?
4, 8, 12, 16, 20
Choose ALL the correct answers.
a. They have 4 as a factor.
b. They are factors of 4.
c. They are factors of 8.
d. They are multiples of 4.
e. They are multiples of 8.
a, d
Last year 42 inches of rain fell in Ocean City. In Riverside, 6 inches of rain fell last year.
Write and solve an equation to find how many times as much rain fell in Ocean City last year as fell in Riverside.
6 x ? = 42, so 6 x 7 = 42
42/6 = ?, so 42/6 = 7
Last week Marla played her flute for 5 hours. This week, she plays her flute 4 times as many hours as last week. What it the TOTAL number of hours Marla played her flute over the two weeks?
25 hours
42 pages
Armand puts 24 cheese sticks into bags. He puts the same number of cheese sticks into each bag. What are all the possible numbers of cheese sticks that Armand can put into each bag?
1, 2, 3, 4, 6, 8, 12, 24
Which comparisons describe the equation 9 x 3 = 27? Choose ALL the correct answers.
a. 3 times as many as 27 is 9
b. 27 is 9 times as many as 3
c. 9 times as many as 3 is 27
d. 9 is 3 times as many as 27
e. 27 is 3 times as many as 9
b, c, e
Which problem can be solved using the equation 5 x 3 = n?
a. Brett eats 5 grapes with lunch. Noel eats 3 more grapes than Brett. How many grapes does Brett eat?
b. Anna reads 5 times as many pages as Andy. Andy reads 3 pages. How many pages does Anna read?
c. Ms. Jackson buys 5 boxes of cereal and 3 boxes of oatmeal. How many boxes of cereal and oatmeal does Ms. Jackson buy?
d. Tim has 3 more stickers than Jamal has. Tim has 5 stickers. How many stickers does Jamal have?
b
Anna arranges cards for a game into 4 rows and 10 cards. What are two other ways she can arrange the cards so that there are the same number of cards in each row?
8 x 5
2 x 20
1 x 40
Justin has 4 comic books. His cousin Aaron has 5 times as many comic books as Justin has.
Which equation represents the number of comic books that Aaron has?
a. 4 + 20 = 24
b. 4 + 5 = 9
c. 5 x 4 = 20
d. 6 x 4 = 24
c