Unit 6 Test Study Guide

Front

What is the total cost of Morris's camera and 5 rolls of film before tax?

Back

$129.59 + (5 x $8.29) = $129.59 + $41.45 = $171.04

Front

How do you calculate the change Morris should get back after paying with a $200 bill?

Back

Total cost = $171.04 + $11.97 (tax) = $183.01. Change = $200 - $183.01 = $16.99.

Front

What is the total cost of Naomi's meal at Wendy's?

Back

2 x $0.89 + $2.39 + $1 = $1.78 + $2.39 + $1 = $5.17.

Front

How do you calculate the change Naomi should get back after paying with a $10 bill?

Back

Change = $10 - $5.17 = $4.83.

Front

What is the missing number in the equation .207 x ____ = 2.07?

Back

The missing number is 10.

Front

How do you find the area of a rectangle?

Back

Area = length x width.

Front

What is the area of a rectangle with length 6.3 units and width 2.7 units?

Back

Area = 6.3 x 2.7 = 17.01 square units.

Front

What is the formula for calculating the perimeter of a rectangle?

Back

Perimeter = 2 x (length + width).

Front

What is the perimeter of a rectangle with length 4.5 units and width 3.2 units?

Back

Perimeter = 2 x (4.5 + 3.2) = 2 x 7.7 = 15.4 units.

Front

What does 'tax' mean in a purchase?

Back

Tax is an additional amount of money added to the price of goods or services, usually a percentage.