Mariah stated that -8 + (-4) = -4 by counting four spaces to the right from -8 on the number line and ending at -4.

Which statement and number line below are true about Mariah’s explanation?

A. Mariah is not correct. She has to move to the left on the number line since the

number being added is negative. She should have counted four spaces to the

left from -8 on the number line and ended at -12.

]]>B. Mariah is correct. -8 + (-4) = -4. She moved to the right on the number line

since she is adding.C. Mariah is not correct. She started at the wrong number. She should have

started at -4. She has to move to the right on the number line since she is

adding. She should have counted 8 spaces to the right from -4 on the number

line and ended at 4.D. Mariah is not correct. She has to move to the right on the number line since

she is adding. She should have counted 12 spaces to the right from -8 on the

number line and ended at 4.

Which of the following correctly describes Charlie’s number line?

]]>A. The steps have to start on the 5 since it is positive.

B. The direction of the steps is incorrect.

C. The number line is correct.

D. There are too many steps.

A. -450 – 200 = -650 feet B. -450 + 200 = -250 feet

C. -450 – 200 = -650 feet D. -450 + 200 = -250 feet

]]>-$15 + $35 = $50

B.

-$15 + $50 = $35

C.

-$15 + $35 = $50

D.

-$15 + $50 = $35

]]>A.

C.

]]>

]]>A. -4 + 3

B. -4 – 3

C. -4 + 7

D. -4 – 7

B. Graph the equation representing the situation from part A on a number line.

]]>