Grade 6 Unit 3
Understanding Positive and Negative Numbers
Post Assessment
Name_________________________________
Date__________
Class ___________
Section 1 – Understanding Rational Numbers
Score _____ / 45 points
Directions: You may NOT use a calculator. YOU MAY USE A NUMBER LINE.
1. Locate and label the following points on the number line.
B) 1
A) -1.5
3
4
(1 point each)
D.) - 4
C) -5
2. Order these temperatures from least to greatest.
0˚F
______
115˚F
-15˚F
______
(1 point each )
-32˚F
______
______
3. Write the integer to describe each situation.
a) a loss of 5 yards
___________
b) 4 degrees below zero
___________
c) 12 feet above sea level
___________
d.) owing your brother $18.75
____________
4. Identify each number’s inverse.
113.2˚F
______
(1 point each)
(1 point each)
a.)
3
______________
b.)
-2.4
______________
c.) -25
______________
d.)
______________
0
1
2
CREC © 2012 – 2013
Grade 6 Unit 3
Understanding Positive and Negative Numbers
Post Assessment
Simplify:
5.
- (-8)
Answer ____________
(2 points)
Explain what this means and how your got your answer.
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
_________________________________________________________________________________
6.
Tenika plays football. Sometimes she gains yardage and sometimes she loses yardage.
Determine Tenika’s total yardage after the following:
(2 points)
She gains 3 yards, loses 5 yards, loses 2 yards, gains 7 yards, and loses 2 yards.
Answer__________________
Show your work.
7. The high temperature is 10˚F. The low temperature is -12˚F. What temperature is halfway
between the high and the low?
(2 points)
Answer_______________________
Show your work or explain your answer.
CREC © 2012 – 2013
Grade 6 Unit 3
Understanding Positive and Negative Numbers
Post Assessment
8. Which number is greater: -20 or -35? Answer______________
(2 points)
Explain______________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
9. The average low temperature in 2005 for the state of Wisconsin was -13˚F. The average high
temperature was 19˚F. What is the difference between the high and low temperature?
(2 points)
Answer_______________________
Show your work or explain how you determined your answer.
10a – 10c refer to the coordinate grid:
a) Use ordered pairs to identify the following points shown on the coordinate grid.
A. _____________
B. _____________
C. ____________
D. _____________
E. _____________
F. ____________
(1 point each)
b) Label the origin with the letter O on the coordinate grid (shown above). What ordered pair
represents the origin? ___________________
(1 point)
c) Plot point ( - 5, 3 ) on the coordinate grid below and label it T.
CREC © 2012 – 2013
(1 point)
Grade 6 Unit 3
Understanding Positive and Negative Numbers
Post Assessment
11. One of the thermometers shows -3°C and the other shows -7°C.
a.) Label each with the
correct temperature
Thermometer A
Thermometer B
Temperature is ______
Temperature is ______ ( 1 pt. each)
b) Which thermometer (A or B) shows the colder temperature? _______________. (1 pt.)
c)
Use the appropriate inequality sign ( > or <) to represent the two temperatures. (1 pt.)
-
3
- 7
d) How much colder? Answer ___________________. (1pt.)
e) Explain how you determined your answer. (2 pts.)
__________________________________________________________________________________
__________________________________________________________________________________
__________________________________________________________________________________
______________________________________________________________________________
__________________________________________________________________________________
CREC © 2012 – 2013
Grade 6 Unit 3
Understanding Positive and Negative Numbers
Post Assessment
12. Alejandro Ant is located at the bottom of a drain 8 centimeters below the surface of the street.
He wants to climb 8 centimeters up the tree right next to the drain so that he can rest in the
sunshine. Each day he climbs up 10 centimeters. But each night the wind blows him down 6
centimeters.
a.
Draw a picture of the story problem.
(1 point)
b. How many days it will take Alejandro to crawl from the bottom of his drain to his favorite
place up the tree? Show your work.
(2 points)
CREC © 2012 – 2013