Circumference of a circle
Area of a circle
Tax/Discount
Number System
% Increase/Decrease
100

Radius of 12

75.36

100

Radius of 7

153.86

100

Item is $47. Tax is 6%. What is the tax amount?

$2.82

100

-8 + (-12)

-20

100

100 to 150

50% increase

200

Diameter of 9

28.26

200

Diameter of 12

113.04


200

Item is $37. Discount is 15%.What is the discount amount?

$5.55

200

61 + 12 - 34

39

200

200 to 125

37.5% Decrease

300

Radius of 37

213.52

300

Diameter of 43

1,451.47

300

Item is $234. Tax is 8%. What is the total cost of the item?

$252.72

300

-5 + 6 - 3 + 2

0

300

350 to 100

71% Decrease

400

Diameter of 56

175.84

400

Radius of 56

9,847.04

400

Item is $542. Discount is 19%. What is the total cost of the item?

$439.02

400

-3(-6)

18

400

200 to 745

273% Increase

500

Radius of 2,432

15,272.96

500

Diameter of 176

24,316.16

500

Item is $6,467. Discount is 25%. Tax is 8%. What is the total cost of the item?  388.02

$4462.23

500

126/14

9

500

734 to 4,529

517% Increase