Unit 7 Review - Numerical Expressions

Which TWO expressions are equivalent to 4(x +7)?

• 4 + x + 4 + 7

• 4x + 7

• 4 + x + 7

• 4x + 28

• 4x + 4(7)

Tags

6.7.D

• 19

• -38

• 7

• -52

Which expression is equivalent to 10³? ​

• 3 x 3 x 3
• 10 x 3
• 10 x 10 x 10

• 30

Which TWO of these can be written as an equation?

• Two times 0.85 plus n

• Five times x is 25

• Four is less than twice a number

• Half the product of six and k

• Twice a number plus seven is 15

Tags

6.7.B

Which of these can be written as an equation?

• Five plus twice b

• Eight less than a number times a

• Half of a is equal to 48

• Nine times x

Tags

6.7.B

Determine which expression is equivalent to 10x + 5 + x + 4?

• 11x + 9

• 20x

• 15x + 4x

• 20x + 4

Tags

6.7.C

John has $85. He spent $5 per day for 5 days. Then he was given $20 to divide equally between himself and his 3 sisters. The following expression can be used to find the amount of money John had after that.

85 - 5 ⋅ 5 + 20 ÷ 4

Based on this expression, what is the amount of money John had remaining?

• 65

• 60

• 105

• 115

Which two expressions are equivalent?

• 7 + ( x ÷ 3)

  x ÷ (3 + 7)

• 9(x + 6)

  9 ⋅ x + 9 ⋅ 6

• x - 6 ⋅ 4

  6( x - 4)

• 7 ÷ (6 - x)

  (7 ÷ 6) - x

Tags

6.7.D

What is the value of the expression below?

3 ⋅ 8 + 2³ ÷ (2 + 2)​

• 26
• 16
• 6.75
• 11.25

Which expression is equivalent to 16x + 5 - 4x?

• 12x

• 12x + 5

• 16x - 1

• 64x + 5

Tags

6.7.C