Form 1 Period 2 Math Review

Which of the following is an odd number?

• 12

• 18

• 21

• 26

What is the smallest prime number?

• 0

• 1

• 2

• 3

Which of the following is a whole number but not a natural number?

• 1

• 2

• 0

• 5

A number divisible by both 2 and 3 is always divisible by:

• 5

• 6

• 4

• 9

What is the LCM of 4 and 5?

• 10

• 15

• 20

• 25

What is the HCF of 12 and 16?

• 2

• 4

• 6

• 8

Which of these is a composite number?

• 7

• 11

• 13

• 15

The sum of two even numbers is always:

• Odd

• Even

• Prime

• Composite

Which of these is not a multiple of 3?

• 9

• 15

• 20

• 21

How many factors does the number 7 have?

• 1

• 2

• 3

• 4