Adding/Subtracting
Add:
8 + (-14)=
-6
Solve:
-7 x -2
14
What integer makes this statement true?
__ x (-0.2) = 30
Will this have a positive or negative result?
-1,000 x (-6)
Positive
You buy a pair of shoes for $125. You saved $15 because of the sale. Write an equation where x is the original price of the shoes.
SOLVE: what is the original price?
x-15 = 125
$140
Solve:
22 - (-22)=
44
Solve:
12 ÷ (-1/4) =
-48
Which operation would make this equation true?
-32 __ -8 = -40
Add (+)
Which operation makes this equation true?
-8 __ 2/5 = -20
Division (÷)
a. 800 x k = -40
b. 40 x k = 800
c. 40 x k = -800
d. 40 x k = -80.0
c. 40 x k = -800
Solve:
-1/7 - 4/7 =
-5/7
Solve
81 ÷ (-9)
-9
Which operation would make this equation true?
15 __ 2/5 = 6
Multiply (x)
Solve:
3/7 - 5/7 =
-2/7
2-part Question
1. Ryan lost 12 pounds, and now weighs 115. This can be represented by what equation where x is his initial weight.
2. What was his initial weight?
x - 12 = 115
127 pounds
Solve:
0.32 - 0.62
-0.30
-0.12 ÷ -0.4
0.3
What operation makes this equation true?
12 __ 16 = -4
Subtract (-)
Which are the true statements?
a. -1/3 x -1/6 = -1/18
b. -2/5 x 1/4 = -1/10
c. 1/4 x -1/2 = -1/8
d. 2/5 x 1/5= -2/25
b. -2/5 x 1/4 = -1/10
c. 1/4 x -1/2 = -1/8
2 minutes
-1/6 + -2/3
-5/6
Solve:
1/5 ÷ (-2/3)
-3/10
Fill in the blank:
__ / 6 = 4
24
Miss Swiney solved this problem:
-1/3 ÷ -3/5 = 5/9
Is she correct?
Yes
I bought a car on sale for $500 less than the original price. If x is the original price and I bought the car for $19,700, what equation determines the original price of the car?
x - 500 = $19,700