Math Concepts for Grade 9

What is the result of 3 + 5 × 2 - 4 ÷ 2?

• 8

• 12

• 11

• 10

List the first five prime numbers.

• 1, 4, 6, 8, 9

• 2, 4, 6, 8, 10

• 3, 5, 6, 8, 10

• [2, 3, 5, 7, 11]

What are the factors of 36?

• 5, 7, 8, 10

• 11, 13, 14, 17

• [1, 2, 3, 4, 6, 9, 12, 18, 36]

• 15, 20, 24, 30

What are the first four multiples of 7?

• 6, 12, 18, 24

• 5, 10, 15, 20

• 7, 14, 21, 28

• 7, 15, 22, 30

Find the highest common factor of 12 and 18.

• 3

• 6

• 9

• 12

What is the least common multiple of 4 and 5?

• 15

• 10

• 25

• 20

Calculate 2^4 and find its root.

• 4

• 3.5

• 4.0

• 2.0

What is the sum of -7 and 3?

• 0

• -10

• -4

• 6

Subtract -5 from 2.

• -3

• -7

• 7

• 2

Multiply -4 by 6.

• -20

• 24

• -30

• -24