Factors & Multiples
List all of the factors of the number 12.
1, 2, 3, 4, 6, 12
Write and solve a multiplication equation:
Nick is 15 years old. His mom is 3 times as old. How old is Nick's mom?
15 x 3 = M
M = 45 years old
Is 17 prime or composite? What are the factors?
Prime. 1 x 17
Mrs. Corron has 27 milliliters of red paint and 36 milliliters of blue paint. How many milliliters of paint does she have all together?
63 milliliters
A pattern starts with 7 and the rule is to add 8. Find the next 5 numbers.
15, 23, 31, 39, 47
What are 4 multiples of the number 9?
18, 27, 36, 45
Write and solve an equation: Ms. Krance had 12 paper clips. Mrs. Snay has 4 times as many. How many paper clips did Ms. Snay have?
12 x 4 = P
P = 48 paper clips
Is 25 prime or composite? What are the factors?
Composite.
1 x 25, 5 x 5
How many centimeters are in a meter?
100
What is the pattern in the following numbers?
75 66 57 48 39
Subtract 9
What are 4 multiples of the number 4?
8, 12, 16, 20
Aydan made a 4 x 6 array. What other dimensions of an array could he make with the same number of tiles? Include all possibilities.
1 x 24
2 x 12
3 x 8
Is 35 prime or composite? What are the factors?
Composite.
1 x 35
5 x 7
How many grams are in a kilogram?
1,000
The pattern starts with 50 and adds 11. Find the next 5 numbers.
61, 72, 83, 94, 105
Which of these are multiples of 7?
A. 14
B. 35
C. 17
D. 77
A. 14
B. 35
D. 77
Solve: 80 x 90
7,200
Noah says that 50 is prime. Claire says that it is composite. Who is right? How do you know? What are the factors of 50?
Claire is right. 50 is composite because it has more than 2 factors.
1 x 50, 2 x 25, 5 x 10
Which is bigger: 13 kg or 3 g?
13 kg.
Solve: 300 x 9
2,700
List all the factors of the number 51.
1, 3, 17, 51
Solve: 7 x 900
6,300
Is 100 prime or composite? Find all the factors.
Composite
1, 2, 4, 5, 10, 20, 25, 50, 100
How many inches are in 5 feet?
60 inches
Which is bigger: 75 kg or 75 g? Convert the kilograms to grams.
Kilograms are bigger; 75 kg = 75,000 g