Expressions Review

• 12

• 17

• 72

• 15

Which expression represents the product of 12 and m?

• 12 + m

• 12 - m

• 12m

• b more than some number

• some number times 2

• some number divided by 2

• 2 less than some number

• 7

• -10

• -4

• 11

Which of the following best describes the expression 10(x+3)?

• The product of a constant factor ten and a two-term factor x and three

• The sum of a constant factor ten and a two-term factor x and three

• The difference of constant factor ten and a two-factor term x and three

• The quotient of constant factor ten and a two-factor term x and three

The equation below shows the total volume (V), in cubic units, of 2 identical boxes with each side equal to s units:

V = 2s³

If s = 3 units, what is the value of V?

• 54 cubic units

• 6 cubic units

• 27 cubic units

• 9 cubic units

Which expression is equivalent to a + (b + c)?

• ab + c

• ab + ac

• (a + b) + c

• (a + b) x c

A student attempted to generate an equivalent expression using the distributive property, as shown below:

3(x + 5) = 3x + 5

What was the mistake made?

• 3 was not multiplied by x

• 3 was not multiiplied by 5

• Incorrect sign was used for the first term

• Incorrect sign was used for the second term

Which expression is equivalent to 10c + 10c?

• 100c

• 10 + 2c

• 20c

Combine Like Terms: -5x + 4y + 15x - 2y

• 20x + 6y

• 20x + 2y

• 10x + 2y

• 12xy