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Calculating Discounts and Complements

Calculating Discounts and Complements

Assessment

Interactive Video

Mathematics

9th - 10th Grade

Practice Problem

Hard

Created by

Thomas White

FREE Resource

This video tutorial explains how to compute trade discounts using complements. It covers the calculation of net costs by reversing the order of operations, focusing on subtraction of percentages first. The tutorial also delves into series discounts, explaining how to use complements to determine net costs. Advanced examples are provided, and the use of tables to simplify series discount calculations is discussed.

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23 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in calculating net cost using complements?

Subtract the discount percentage from 100%

Multiply the list price by the discount rate

Add the discount percentage to 100%

Divide the list price by the discount rate

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the example with a 15% trade discount, what is the net cost percentage?

75%

100%

85%

15%

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When calculating net cost with complements, what operation is performed first?

Multiplication of list price

Addition of percentages

Subtraction of percentages

Division of list price

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the complement of a 10% discount?

80%

10%

90%

70%

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the complement of a 25% trade discount?

65%

25%

85%

75%

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the example with a 25% trade discount, what is the base percentage?

100%

75%

85%

25%

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the complement of a 25% discount?

75%

25%

65%

85%

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