find the discount
find the sales tax
adding with decimals
subtracting with decimals
sales tax and discounts
100

20 % off $ 50

answers: $40

100

$10 and 5% tax

$ 9.50

100
115.48 - 6.92 =
$122.40
100
$39.00 - 9.75 =
$29.25
100
When you find a discount do you add, subtract, multiply or divide?
subtract
200

40% off $ 7.25 

$4.35

200

$53.00 and 6% tax

$56.18

200
$349 + $22.69 =
$371.69
200
$35 - $14 =
$21
200
when you find sales tax do you add, subtract, multiply or divide the original price?\\hint: step # 2
add
300

10% of $35

$ 31.50

300
$18.45 and 4.5% tax
$19.28
300

300 + 160.50 =

$360.50

300
16.99 - .86 =
$16.14
300
Explain how to find where the decimal goes when you are multiplying a number like 3.2 X 2.5 =
There are 2 places (numbers) behind the decimal in the problems, so you move the decimal 2 places to the left in your answer.
400

5% off $16

$15.20

400
$22.65 and 7% tax
$24.24
400

620.75 + 25.25 =

$ 646

400
56.18 -3.18=
$53.00
400
When adding or subtracting decimals what must you do before you fill in the numbers? Hint: like buttons on a shirt
line up the decimals
500
80% off $ 9.95
$ 1.99
500
Charlene's lunch bill was $18.70. Estimate the total cost for lunch with 5% tax and a 15% tip.
$22.58
500
190 - 16.77 =
$173.23
500
167.45 - 28.54 =
$138.91
500

What is Mr. Rash Favorite Number

12

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