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How do you add or multiply percentages?

Demonstrate an understanding of the meaning and uses of accuracy and precision

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Upper and lower bound

Upper and Lower Bound

Metric systems

Add and Subtract Mixed Units

Metric Length Conversion

Add or Subtract Different Metric Units Convert to CM

Add or Subtract Different Metric Units Convert to M

Add or Subtract Different Metric Units Convert to MM

Imperial systems

Imperial Length Conversion

Use a measuring tape to measure tactile items in both imperial and SI units

Conversions between metric and imperial systems

Metric to Imperial Conversions

Imperial to Metric Conversions

Conversions Between Metric and Imperial Systems Speed KM to MI

Conversions Between Metric and Imperial Systems Speed  MI to M

Metric-Imperial Length Conversion Inch To Cm

Metric-Imperial Length Conversion MM/CM/M/KM To FT

Metric-Imperial Length Conversion MM/CM/M/KM To MI

Identify the difference between length, area, and volume

Surface area of 3-dimensional shapes

Conversions involving squares and cubic

Imperial to Metric Conversions — Squares and Cubes

Imperial Conversion — Squares and Cubes

Metric to Imperial Conversion — Squares and Cubes

Metric Area Conversion FT to CM

Metric Area Conversion Foot to Inch

Metric Area Conversion M/CM to Inch

Difference quotient: applications of functions

Demonstrate an understanding of the meaning and uses of significant figures

Place value

Comparing and ordering numbers

Comparing Integers

Comparing Numbers

Comparing Fractions

Rounding numbers

Rounding Decimals

Rounding Integers — Up to 9999

Identify, use, and convert among and between SI units and imperial units

Find the exact value of trigonometric ratios

Demonstrate an understanding of and be able to solve problems using the Pythagorean theorem

Pythagorean theorem

Pythagorean Theorem

Using the pythagorean relationship

Applications of pythagorean theorem

Demonstrate mathematical knowledge required for various career choices

Finance: Compound interest

Finance: Compound Interest

Continuous growth and decay

Finance: Future value and present value

Demonstrate entry-level competence in mathematics for specific career choice

Fundamental counting principle

Fundamental Counting Principle Involving Restrictions

Center of a data set: mean, median, mode

Probability distribution - histogram, mean, variance & standard deviation

Sketch and construct a model to show mathematics involved in a career interest

Applications of polynomial functions

Ferris wheel trig problems

Calculate dimensions of actual objects using blueprints with various scales

Combining transformations of functions

Enlargements and reductions with scale factors

Scale diagrams

Sketch and build representations of three-dimensional objects

Surface area and volume of prisms

Surface area and volume of pyramids

Surface area and volume of cylinders

Surface area and volume of cones

Surface area and volume of spheres

Illustrate and express ratios, fractions, decimals, and percentages in alternative forms

Direct variation

Identifying direct variations

Inverse variation

Ratios

Ratios - Find The Missing Value LHS

Ratios - Find The Missing Value RHS

Equivalent Ratios

Rates

Find the Biggest Rate 

Find the Unit Price 

Unit Rate Fill in Box

Find the Quickest Rate 

Unit Rate

Proportions

Proportions — Missing Denominator

Proportions — Missing Numerator

Proportions - Find the Missing Denominator LHS

Proportions - Find the Missing Denominator RHS

Proportions - Find the Missing Numerator LHS

Proportions - Find the Missing Numerator RHS

Representing percents

Representing Percents

Representing Percents — Word Problem

Representing Percents Two Graphs – Word Problem

Percents, fractions, and decimals

Conversion — Decimal to Fraction

Conversion — Decimal to Percent

Conversion — Fraction to Decimal

Conversion — Fraction to Percent

Conversion — Percent to Decimal

Conversion — Percent to Fraction

Percents – Word Problem

Convert a Decimal to a Fraction

Convert a Decimal to a Percent

Convert a Fraction to a Decimal

Convert a Fraction to a Percent

Convert a Percent  to a Decimal

Convert a Percent to a Fraction

Percents Fractions And Decimals – Word Problem

Percent of a number

Percent of a Number

percent of a number – Word Problem

Percent of a Number  Fraction Percent

Percent of a Number Integer Percent 

Percent of a number number With Decimal Percent 

Percent of a Number  Three Digits Number Percent

Rational vs. Irrational numbers

Converting repeating decimals to fractions

Find and calculate rates in practical applications such as pulse rate

Rate of change

Arc length

Estimate and calculate deductions from a pay stub as percentages of gross earnings

Taxes, discounts, tips and more

Discounts — Word Problem

Taxes — Word Problem

Percentage - Applying a Discount Price– Word Problem

Percentage - Applying a Discount Percent – Word Problem

Percentage - Applying a Tax Total – Word Problem

Percentage - Applying a tax Percent – Word Problem

Adding and multiplying percents

Add and Multiply Percents — Word Problem

Add and Multiply Percents – Word Problem

Sketch enlargements and reductions of objects using various scales

Transformations of functions: Horizontal stretches

Transformations of functions: Vertical stretches

Use the slope formula to solve trigonometric problems commonly found in industry

Slope equation: $m = \frac{y_2-y_1}{x_2- x_1}$

Slope equation: <katex>m = \frac{y_2-y_1}{x_2- x_1}</katex>

Mathematics Essentials 12

Measurement

Mathematics in the Workplace Investigation

Ratio, Rate, and Proportion

Major Project: Math Preparation for the Workplace

math

- Hi, welcome to this question right here. So we&apos;ve got a little application right here, and you'll probably be very familiar with this. So let's say you go buy one video game that's $25. That's kind of cheap right? Up to 12% sales tax, okay? So you decided you want to get four video games in total and you're wondering how much you had to pay after tax. Okay? 
So figure it out. If one game is $25, okay? For every game you're buying is $25 right? So it's quite obvious that if you're buying four games, why not just take the four games and times the $25 that you're buying, right? So that gives you $100 that you have to pay. Right? 
But here in Canada or wherever you go there's always some kind of sales tax, 8%, 
10%, 5% right? So the games are just 100%-- actually the games are just $100, but you have to pay the 12% of the sales tax. So what do you do? 
Well multiply them together to figure out how much is the 12% of that $100. Now 12% 
of 100 is easy to calculate, but they just show to work. Twelve percent, if you're going to get the decimal form out, you need to take your decimal here and move two to the left. That gives you 0.012 I'm sorry, 0.12 just like that. So now I can take the 0.12 and then multiply that $100, okay? It turns out to be just $12 by the way because 100 is easy to work with. Just let me double check, it is the $12. Now, this is tax okay? This is your sort of tax, this is actually tells you it's just your tax that you're paying. All right, you bought $100 worth of video games and you had to pay $12 for the tax. So how much the four video games after tax? Well it's simple. There's your video game, $100 plus the tax you're paying, that's $12 dollars, the total would be just $112, and that's your final answer right there. Thanks for watching.

Knowing how to add and multiply percentages is very useful in our daily life. Do you know how much sales tax you are going to pay for your new purchases? What is the sale price after discount? How do banks calculate interest? We will learn more in this section.

Applications of percents