Integers Ms. Towne

Which statement best models the equation below?
 $-7\ +7=0$  

Parker is playing a game in which the object is to obtain a 0 by adding the points scored during each round.

Round 1 Round 2 Round 3 Round 4 Round 5

-8 2 -8 4 ??? = 0

Based on the points scored during the first 4 rounds, what score does Parker need on the fifth round?

Josephine bought a sweater for $7.99 and a skirt for $20.50. She gave the clerk $50. How much change did she receive?

The high temperature on Monday was   $-17\degree F$ . On Tuesday, the high temperature was  $27\degree\ F$ . Which integer represents the difference in high temperatures on these 2 days?

Hint:
 $27-\ \left(-17\right)\$  

What is the distance between X and Z on the number line below?

If two different numbers have a sum of zero, which statement is true?

Carlos is adjusting a balance of a scale that reads -.67 kg. He will need to add the opposite of this reading to balance the scale at zero. How much will he need to add to the scale?

Which property is illustrated below?
 $\frac{4}{5}+\frac{3}{7}=\frac{3}{7}+\frac{4}{5}$  

Which of the following number lines models the expression below?

-2.5 + (-1)

The average surface temperature on Jupiter is $-162\degree F$ . The average surface temperature on Saturn is  $46\degree F$  less than on Jupiter. What is the average surface temperature on Saturn?