Expressions Test

Which of the following expressions represents “6 less than the product of 5 and a number n”?

• (5 + n) - 6

• 6 - (5 + n)

• 6 - 5n

• 5n - 6

Which expression is not equivalent to 6x + 14?

• 2(x+7) + 4x

• 4x + 12 + 2x + 2

• x(6 + 14)

• 5 x + x + 10 + 4

Simplify the following expression: 4p + 2n + n

• 4p + 2n

• 43pn

• 6

• 4p + 3n

Which statement illustrates distributive property?

• 24 x 2 = 2 x 24

• (53 + 17) + 10 = 53 + (17 + 10)

• 12 + 13 + 18 + 37 = 80

• 9(20 + 6) = 9(20) + 9(6)

Which represents “the difference of 16 and the product of 3 and b?”

• (16 - 3)b

• 16 - 3b

• 16(3 - b)

• (16 - 3)(16 - b)

Which of the following is an equivalent expression for

56x – 64?

• 8x(7 - 8x)

• 8(7x - 8x)

• 8(7x - 8)

• 4x(14 - 8)

In the expression 5b + 3, the letter b represents a:

• constant

• variable

• exponent

• coefficient

Which expression represents “the product of 8 squared and the difference of a number n and 9”?

• 82(n - 9)

• 82(n + 9)

• 82 + 9n

• 82 – 9n

What is the value of the expression below when a = 4?

6a + 7

• 31

• 41

• 53

• 71

Which expression is equivalent to 9(4 + r)?

• 36r

• 36 + r

• 13r

• 36 + 9r