Exploring Special Numbers and More

What is a square number? Give an example.

• 5

• 4

• 6

• 3

Is 64 a square number?

• 64 is a prime number.

• No, 64 is not a square number.

• Yes, 64 is a square number.

• 64 is a cube number.

What is the divisibility test for 2?

• A number is divisible by 2 if it is a prime number.

• A number is divisible by 2 if it ends with a 5.

• A number is divisible by 2 if its last digit is odd.

• A number is divisible by 2 if its last digit is even.

Is 45 divisible by 5?

• Yes

• It depends on the context

• Only if it's even

• No

What is 10% of 200?

• 30

• 25

• 15

• 20

What is the place value of 7 in the number 572?

• 50

• 70

• 700

• 7

List the factors of 24.

• 10

• [1, 2, 3, 4, 6, 8, 12, 24]

• 5

• 15

What are the multiples of 3 up to 30?

• 2, 5, 8, 11, 14, 17, 20, 23, 26, 29

• [3, 6, 9, 12, 15, 18, 21, 24, 27, 30]

• 1, 3, 5, 7, 9, 11, 13, 15, 17, 19

• 4, 7, 10, 13, 16, 19, 22, 25, 28

If you have 1/4 and 1/4, what is the sum?

• 1/4

• 3/4

• 1/1

• 1/2

What is 25% of 80?

• 25

• 30

• 15

• 20