Factors & Multiples
The factors of 12
What is 1, 2, 3, 4, 6, 12
7 x 9 = 63 means
What is 7 groups of 9 make 63, or 9 groups of 7 make 63
Write an equation for: "4 times as many as 6"
What is 4 x 6 = 24
What comes next?
92, 85, 78, 71, __
What is 64
(The rule is subtract 7)
Which is a more reasonable height for a fourth grader: 12 cm or 119 cm?
What is 119 cm
17, a prime or composite number
What is prime
Find the missing number: 5 x _ = 40
What is 7
Mia has 8 stickers. Jake has 3 times as many. How many stickers does Jake have?
What is 24 stickers
The rule of 10, 16, 22, 28, 34
What is add 6
Which is heavier: 75 grams or 75 kilograms?
*Hint* 1 kilogram = 1000 grams
What is 75 kilograms
24, a prime or composite number. Give a reason.
What is composite because it has more than two factors
Find the missing number: __ รท 8 = 9
What is 72
A number is 10 times as large as 7.
What is 70
Find the missing number: 117, 123, __, 135, 141
What is 129
(The rule is add 6)
A small box weighs 12 grams. A large box weighs 10 times as much. How much does the large box weigh?
What is 120 grams
(12 x 10 = 120)
Which numbers are multiples of 8: 12, 16, 24, 30, 40
What is 16, 24, 40
Write four multiples of 5
What is 5, 10, 15, 20, 25, 30...
Sarah is 12 years old. Her grandmother is 5 times her age. How old is her grandmother?
What is 60 years old
The rule 200, 190, 180, 170
What is subtract 10
Jacob has 57 mL of red paint and 24 mL of yellow paint. How much paint does he have altogether?
What is 81 mL
(57 + 24 = 81)
The greatest factor of every whole number
What is the number itself
A box has 9 crayons. There are 4 times as many crayons in another box. How many crayons are in the second box? Show your thinking.
What is 36 crayons? 9 x 6 = 36
A box has 3 broken crayons. Another box has 4 times as many broken crayons. Then 5 more broken crayons are found. How many are there altogether?
What is 20 broken crayons
(3 + (4x3) + 5)
A pattern starts at 50 and follows the rule "add 7." What are the next four numbers?
What is 57, 64, 71, 78
A bag weighs 25 kilograms. Another bag weighs 3 times as much. What is the total mass of both bags?
What is 100 kilograms
(25 + (25x3)) = 100