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Basic Math

Representing percentsBasic Math

Applications of percentsBasic Math

Percents, fractions, and decimals- Home
- Basic Algebra
- Ratios, Rates, Proportions and Percent

Still Confused?

Try reviewing these fundamentals first

Basic Math

Representing percentsBasic Math

Applications of percentsBasic Math

Percents, fractions, and decimalsStill Confused?

Try reviewing these fundamentals first

Basic Math

Representing percentsBasic Math

Applications of percentsBasic Math

Percents, fractions, and decimalsNope, got it.

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Get Started Now- Intro Lesson: a7:31
- Lesson: 1a2:17
- Lesson: 1b3:12
- Lesson: 1c2:45
- Lesson: 1d3:48
- Lesson: 22:17

In this section, we will try to estimate the percent of a number without using a calculator. The trick is to breakdown the percent into smaller percent first. These smaller percentages are easier for mental calculation.

- Introductiona)
- What is a percent?
- How to find the percent of a number?

- 1.Evaluate without using a calculator. Then, check your answers with a calculator.a)15% of 40b)320% of 600c)17.5% of 20d)$20\frac{1}{4}$% of 50
- 2.The total rain precipitation of last summer was 350 mm. If it increased by $12\frac{1}{2}$% this summer, what was the rain precipitation this summer?

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