Factors/Multiples
What are the factors of 10?
1,2,5,10
Is 20 prime or composite? Why?
20 is composite because it has more than one factor pair.
48 x 6 = ?
288
2,800 / 4 = ?
700
Ms. Williams class eats 437 M&M's each day. Mrs. Payne's class eats 4 times as many M&M's each day. How many M&M's does Mrs. Payne's class eat in a week?
Mrs. Payne's class eats 12,236 M&M's in a week.
What is a prime number?
A prime number is a number with exactly two factors, 1 and the number itself.
What are the factors of 27?
1,3,9,27
Is 23 prime or composite? Why?
23 is prime because it only has one factor pair.
249 x 4 = ?
996
174 / 3 = ?
58
74 skittles come in a package. If the 4th grade teachers share 2 packages equally, how many skittles will each teacher get?
Each teacher will get 37 skittles.
What is a composite number?
A composite number is a number with more than two factors.
No, because there is a remainder. If you count by 8's you will not say 60.
Is 17 prime or composite? Why?
17 is prime because it only has one factor pair.
3,064 x 7 = ?
21,448
859 / 6 = ?
143 R 1
The floor in the gym is 38 meters long and 40 meters wide. Coach Downing wants to re-tile the floor. How much tiling will she need to buy?
She will need to buy 1,520 square meters of tiling.
What is a multiple?
A multiple is a number that can be divided by another number without a remainder. Or, a count-by, or number we say or write when counting by another number.
Write the next 5 multiples of 6 starting at 24.
24, 30, 36, 42, 48, 54
Is 24 prime or composite?
24 is composite because it has more than one factor pair.
43 x 15 = ?
645
8,528 / 4 = ?
2,132
Mr. Drye made small posters and large posters for the Peter Pan play. 16 times as many small posters were made than large posters. If there were 52 large posters, how many more small posters were made than large posters?
There were 780 more small posters made than large posters.
What is a quotient?
The answer to a division problem.
What is the greatest multiple of 8 that is less than 50?
48
True or False: Only even numbers are composite.
Explain your answer.
False. Explanations may vary.
27 x 54 = ?
1,458
9,031 / 2 = ?
4,515 R 1
Cookies are sold in packages of 5. Mrs. Dennis' will give 214 students 4 cookies each. How many packages of cookies will Mrs. Dennis need to buy?
She will need to buy 172 packages of cookies.
What is a product?
The answer to a multiplication problem.
List the factors of both 4 and 16. Circle common factors.
4: 1, 2, 4
16, 1, 2, 4, 8, 16
Common factors: 1, 2, 4
Is the number 1 a prime or composite number?
The number one is neither prime nor composite.
97 x 37 = ?
3,589
9,754 / 6 = ?
1,625 R4
What is the difference between area and perimeter?
The area is the measurement of the inside of something. The perimeter is the measurement of the outside of something.