Final: Decimals and Percents

Part of the Decimals, Percents & Ratios section of Coddy's Pre-Algebra journey. Lesson 49 of 53.

This line mixes decimals inside parentheses, a product, and a percent of a number. Work it with the order of operations, one step per line, until a single number is left.

Challenge

Work out $2.5\cdot \left(1.2+0.8\right)-25\%\cdot 12$ , one step per line.

Try it yourself

2.5\left(1.2+0.8\right)-25\%\cdot 12

Simplify

Test yourself

This lesson includes a short quiz. Start the lesson to answer it and track your progress.

All lessons in Decimals, Percents & Ratios

1Decimals

Place Value Rounding Decimals Recap: Decimals

4Dividing Decimals

Dividing by a Decimal Dividing by 10 and 100 Dividing by a Whole Number Unit Price Recap: Dividing

7Percent Problems

Finding the Whole Discounts Tax and Tips Percent Increase Percent Decrease Recap: Percent Problems

10Proportions

Solving a Proportion Cross Products Scale Drawings Percent as a Proportion Recap: Proportions

2Adding and Subtracting

Line Up the Points Negative Decimals Making Change Recap: Add and Subtract

5Fractions and Decimals

Fraction to Decimal Decimal to Fraction Repeating Decimals Ordering Both Kinds Recap: Fractions and Decimals

8Ratios

What a Ratio Is Simplifying Ratios Equivalent Ratios Sharing in a Ratio Recap: Ratios

11Final Challenges

Final: Decimals and PercentsFinal: The Jacket Final: Out of a Hundred Final: The Apple Stall Final: On the Line

3Multiplying Decimals

Multiplying Decimals Times 10, 100, 1000 Bigger Products Buying by Weight Recap: Multiplying

6Percent Basics

What Percent Means Percent of a Number Percent as a Decimal What Percent Is It Recap: Percent Basics

9Rates

Unit Rates The Better Buy Speed, Distance, Time Converting Units Recap: Rates