Adding & Subtracting Integers
-8 + 3
-5
3 x -8
-24
What would be 20% off of $12
$2.40
12 x 0.2 = $2.40
4x + 3 + 5x
9x + 3 or 3 + 9x
What's my favorite soda?
Dr. Pepper
-12 - 14
-26
30 ➗ (-5)
-6
What would an 8% sales tax be on a $15 item?
$1.20
15 x 0.08 = $1.20
- 8 + 9 + x + 3x
-1 + 4x or 4x - 1
Spell my first name
Melanie
-3 + 5 - 6
-4
-12 x (-9)
108
A backpack costs $55, you use a 20% off coupon. How much does the backpack cost?
$44
55 x 0.2 = $11 off
55 - 11 = $44 total
3 (x + 8) - 10
3x + 14 or 14 + 3x
3x + 24 - 10
What room number are we in right now?
314
10 + (-3) - 7 + 9
9
10 x 6 ➗ 5
12
TV's are increasing by 35%. The original price is $1,250. What's the new price of the TV?
$1,687.50
1250 x 0.3 = $437.50 tax
1250 + 375 = $1687.50 total price
4 (2x - 5) - 5 (x + 6)
3x - 50 or -50 + 3x
8x - 20 - 5x - 30
Spell Mr. P's last name
Padmanabhan
8 - 12 + 9 + (-3) - 6 + 14 - 2
8
-3 x (-5) x 4 ➗ 6
10
A laptop costs $1,328. There is a 30% discount on the price of the laptop, and a 7% sales tax on the discount price. What is the final price of the laptop?
$994.67
1328 x 0.3 = $398.40 off
1328 - 398.40 = $929.60 discount price
929.60 x 0.07 = $65.07 tax
929.60 + 65.07 = $994.67 total
1/2 (10x + 20) - 1/4 (28 - 40x)
15x + 3 or 3 + 15x
5x + 10 - 7 + 10x
When's Miss Jones's birthday? (hint: it's in April)
April 30th