Transforming Decimals, Fractions, and Percents

The video uses the analogy of Transformers to explain the concept of converting between decimals, fractions, and percents. It emphasizes that while numbers may look different, their value remains the same, similar to how Transformers change form but retain their identity. The video covers methods for converting decimals to fractions, fractions to decimals, and both to percents. It also provides visual aids, like grids and pizza, to help understand percents. The video concludes with shortcuts and methods for converting between these forms efficiently.

What analogy is used to explain mathematical transformations?

• Transformers

• Superheroes

• Robots

• Cars

Tags

CCSS.4.OA.B.4

How do you convert a decimal to a fraction?

• Multiply by 100

• Say it, write it, simplify it

• Divide by 100

• Add a percent sign

What is a percent defined as in the video?

• A method to simplify numbers

• A type of fraction

• A comparison of two numbers

• A ratio comparing a number to 100

How do you convert 15% to a fraction?

• 15/10

• 1.5/100

• 15/100

• 150/1000

What is the first step to convert a fraction to a percent?

• Make the denominator 100

• Divide the numerator by the denominator

• Multiply the numerator by 100

• Simplify the fraction

What does multiplying the numerator and denominator by the same number ensure?

• The fraction is no longer valid

• The fraction becomes a decimal

• The value of the fraction remains unchanged

• The fraction is simplified

Tags

CCSS.4.NF.A.1

CCSS.3.NF.A.3A

CCSS.3.NF.A.3B

What is the shortcut for converting a decimal to a percent?

• Multiply by 100

• Move the decimal two places to the right

• Divide by 100

• Move the decimal two places to the left

How do you convert a percent to a decimal?

• Divide by 100

• Multiply by 100

• Add a decimal point

• Subtract 100

What does 0.2 convert to as a percent?

• 2%

• 200%

• 20%

• 0.2%

What does the transformation from 75.5% to a decimal result in?

• 75.5

• 0.0755

• 7.55

• 0.755