Evaluating, Simplifying and Writing Expressions

What is 5 less than the product of 6 and a number?

• 6s - 5

• 5 - 6s

• 5 + 6 - s

• 6 - s -5

Write the expression.

Twelve times a number.

• f + 12

• f - 12

• 12f

• 12 ÷ f

Evaluate 2r + 1; when r = 3.

• 6

• 5

• 7

• 8

Evaluate 4x² - 2x + 7; when x = -2.

• 75

• 27

• -52

• 19

Match the following expressions.

• 2(3x + 5)

• 8x + 6

• 5x + 10

• 4(2x + 6)

• 6x + 20

• 2(3x + 10)

• 2(4x + 3)

• 6x + 10

• 8x + 24

• 5(x + 2)

Are the following expressions equivalent?

20d-16 and 4(5d-4)

• Yes

• No

Are the following expressions equivalent?

6a + 12 and 3(3a +4)

• Yes

• No

Are the following expressions equivalent?

5(5c +6) and 25+ 30c

• Yes

• No

evaluate (x + 3)² - 4; when x = 5.

• 30

• 60

• 12

• 4

Write an algebraic expression for "8 less than a number". Select ALL that apply.

• 8x

• x - 8

• 8 - x

• a - 8

• 8 - a