§7 Understand Negatives
§8 Fluency Add Negatives
§9 Understand Subtraction
§10 Add and Subtract Integers
Random
100
Define an integer and give two examples and one non example.
What is a whole number and its opposite.
Example : 0, -1, 1, 2, -2, ...
Non Example : 0.1, -1.4, 1/2,7/13 , ...
100
Complete the model to find - 9 + 9. Show your work.
What is zero?
100
Which situation could the expression (-19) - 4 represent?
A. A submarine was 19 meters below the surface of the ocean. Then it moved 4 meters closer to the surface of the ocean.
B. Riana owed David $19. Then she gave him $4.
C. The temperature was -19 degrees. Then it decreased 4 degrees.
D. Kevin had 19 pieces of gum. He gave 4 pieces away.
What is C?
100
Model 5 - (-3) using integer chips.
What is 8?
100
Solve the following problem involving fractions
1/3 + 5/3 . SImplify the fraction.
What is
=(1+5)/3=6/3 =2 ?
200
Write an addition equation to represent the number line below. 
What is (-2)+(-3) ?
200
Jeremy says the sum of two numbers can never be negative. Explain why Jeremy’s reasoning is incorrect. Use a model. Show your work.
Ex. -10+2 is negative. The sum is negative if the number with the negative sign is greater than the number without. 
200
Why does -3.6-(-4) have the same result as -3.6+4 ? Explain your reasoning.
Because subtracting numbers is the same as adding the opposite of the second number. (a-b)=a+(-b)
200
Model 8 + (-5) using integer chips.
What is 3?
200
Solve the following problem involving fractions
3/7 + 2/14 . SImplify the fraction.
What is 6/14+2/14=(6+2)/14=8/14=4/7 ?
300
Determine whether the sums are positive or negative. Explain your reasoning.
a. 43+(-34)
and
b. 34+(-43)
What is
a. Positive
b. Negative
The larger number determines what the sign of the answer will be.
300
Complete the model to find - 10 + 12.
What is 2?
300
Rewrite the problem as an addition problem.
-15-(-11)
What is -15+11=-4
300
Model 5 - (-3) using a number line.
What is 8?
300
Solve the following problem involving decimals
12.56+27.49 .
What is 40.05?
400
Decide if the sum of each expression is positive or negative.
What is
a. Negative
b. Negative
c. Positive
d. Positive
400
The sum of -26 and -37
What is -63?
400
Rewrite the problem as an addition problem.
3 3/8-(-6 6/8)
What is 3 3/8 +6 6/8=9 9/8=10 1/8
400
Model 8+(-5) using a number line.
What is 3?
400
CALCULATOR STUDENT
Brendan throws a rock into a pond. The bottom of the pond is -12.6 ft from the surface of the pond. Brendan is on a patio that is 2.7 ft above the pond.
How many feet apart are Brendan and the rock?
What is |(-12.6)-2.7|=|2.7-(-12.6)|=|15.3| or Brendan and the rock are 15.3 ft apart.
500
Determine a scenario where negative numbers apply to the real world.
What is sea level, what is height relative to a cliff, what is a height relative to any object to represent zero(water, cliff, a bird in a tree)
500
In the middle of a game, Dawn has a score of 217. At the end of the game, Dawn’s
score increases by 21. What is Dawn’s score at the end of the game?
What is 238 points?
500
Find a counter example that shows the difference of two negatives number is always negative.
What is any value of the second number that is less than or equal to the first number.
a+(-a)=0 or 3-(-3)=3+3=6
500
Which value of x makes the following statement true?
1.9-x= a negative number
What is if x is greater than 1.9 ?
500
An anchor 15 3/5 m below the surface of the ocean is lowered 4 1/5 m. Then it is pulled up 12 3/5 m. What is the anchor’s new position? Show your work.
What is (-15 3/5)+(-4 1/5)+12 3/5=(-19 4/5)+12 3/5=-7 +(-1/5)
or the anchor’s new position is 7 1/5 m below the surface of the ocean.