6th Grade Unit 7 Review

Which statement correctly represents the meaning of 0 ft in this situation?

• It represents the surface of the water and the elevation of the lighthouse, which are above sea level.

• It represents the surface of the water and the elevation that the boat is floating, which are below sea level.

• It represents the surface of the water and the elevation of the lighthouse, which are both at sea level.

• It represents the surface of the water and the elevation that the boat is floating, which are both at sea level.

During a science experiment, Olivia recorded a temperature of –72.8 degrees Fahrenheit in a controlled environment. Which of the following best explains what that temperature means?

• It means the temperature was 72.8 °F more than one.

• It means the temperature was 72.8 °F more than zero.

• It means the temperature was 72.8 °F less than one.

• It means the temperature was 72.8 °F less than zero.

Which point on the number line represents the opposite of 2?

• point P

• point Q

• point R

• point S

Which expression shows (72 + 24) in the form of c(a + b) , where c is the greatest common factor of 72 and 24?

• 6(12 + 4)

• 12(6 + 2)

• 24(3 + 1)

• 8(9 + 3)

Which of the following number sentences is correct?

• -5 = -(-5)

• -5 = 5

• 5 = (-5)

• 5 = -(-5)

Byron wants to use the distributive property to rewrite the addition problem shown so that the numbers left in the parentheses have no common factor except 1.

(60 + 45)

Which is an equivalent expression that has numbers in the parentheses whose only common factor is 1?

• 5(12 + 9)

• 3(20 + 15)

• 15(4 + 3)

• 45(12 + 1)

Point C is plotted on the coordinate grid below. What are the coordinates of point C

• (3.5, -1.5)

• (-1.5, 3.5)

• (-2.5, 0.5)

• (-3.5, 1.5)

The weather forecast predicts that the temperatures for the day will range from -5° to 5°. Which of the following could be a sequence of temperatures recorded throughout the day? (Assume all temperatures are in degrees Fahrenheit.)

• -4°, -2°, 0°, 3°

• 5°, 6°, 7°, 8°

• -12°, -6°, 6°, 12°

• -11°, -8°, -6°, -4°

Which statement is true when a = -3 and b = |-3| ?

• a > b

• a = b

• |a| = b

• |a| > b

Which of the following numbers is closest to zero?

• |-5|

• |+1|

• |-3|

• |+2|