Prime or Composite
Is 11 prime or composite?
What is prime?
A soccer team scored 4 goals. Another team scored 3 times as many goals. How many goals did the second team score?
What is 12 goals?
Jhozua has 5 more trading cards than Brayan. Is this an additive or multiplicative comparison?
What is an additive comparison?
What are the first five positive multiples of 4?
What are 4, 8, 12, 16, and 20?
Name one factor pair for 18.
What is 1 and 18, 2 and 9, or 3 and 6?
Is 21 prime or composite? Give a factor pair that proves your answer.
What is composite? For example, 3 and 7 are a factor pair of 21.
Lisnept has 28 beads. This is 4 times as many beads as Abmary has. How many beads does Abmary have?
What is 7 beads?
A red army team has 3 times as many players as a blue army team. Is this an additive or multiplicative comparison?
What is a multiplicative comparison?
Which number is a multiple of 7: 24, 28, 31, or 34?
What is 28?
Which pair is a factor pair of 32: 3 and 10, 4 and 8, or 5 and 6?
What is 4 and 8?
Which number is prime: 15, 17, 21, or 25?
What is 17?
A library shelf holds 6 times as many books as a reading basket. The basket holds 9 books. How many books are on the shelf?
What is 54 books?
The art club has 18 students. The chess club has 6 fewer students. Is this an additive or multiplicative comparison?
What is an additive comparison?
Fill in the missing number: 9, 18, 27, ___, 45.
What is 36?
Which pair is not a factor pair of 30: 1 and 30, 2 and 15, 3 and 10, or 4 and 8?
What is 4 and 8?
A Jesse says 1 is prime because it has one factor. Is the student correct?
What is no? The number 1 is neither prime nor composite because it has only one factor.
A school collected 72 cans. This was 8 times as many cans as one classroom collected. How many cans did that classroom collect?
What is 9 cans?
A classroom has 4 times as many pencils as markers. Is this an additive or multiplicative comparison?
What is a multiplicative comparison?
Which number is not a multiple of 6: 18, 24, 30, or 35?
What is 35?
List all the factor pairs of 20.
What are 1 and 20, 2 and 10, and 4 and 5?
Find a composite number between 30 and 40 that has exactly three factor pairs.
What is 36? Its factor pairs are 1 and 36, 2 and 18, 3 and 12, 4 and 9, and 6 and 6.
A toy car is 5 times as long as a toy boat. The toy car is 35 centimeters long. How long is the toy boat?
What is 7 centimeters?
A music class has 26 students. A drama class has 2 times as many students as the music class. Is this an additive or multiplicative comparison? Explain how you know.
What is a multiplicative comparison? The phrase “2 times as many” describes multiplication.
A number is a multiple of 8 and is greater than 30 but less than 50. Name all possible numbers.
What are 32, 40, and 48?
A teacher has 48 pencils and wants to place the same number of pencils in each group with no pencils left over. Name all the possible group sizes.
What are 1, 2, 3, 4, 6, 8, 12, 16, 24, and 48 pencils per group?