Number Systems - CC2 Unit 2 Review

Front

What operation is represented by moving right on a number line?

Back

Addition

Front

Express 75% as a fraction.

Back

3/4

Front

What is the equivalent fraction in lowest terms for 0.70?

Back

7/10

Front

What is the equivalent fraction in lowest terms for 0.80?

Back

4/5

Front

What is the equation to find how many students forgot pencils if 54% of 200 students remembered to bring one?

Back

P = (1 - 54/100) (200)

Front

What is a number line?

Back

A visual representation of numbers in a straight line, where each point corresponds to a number.

Front

What does it mean to express a percentage as a fraction?

Back

It means to convert the percentage into a fraction form, where the percentage is the numerator and 100 is the denominator.

Front

How do you convert a decimal to a fraction?

Back

Write the decimal as a fraction with a denominator of 1, then multiply numerator and denominator by 10 for each digit after the decimal.

Front

What is the lowest terms of a fraction?

Back

A fraction is in lowest terms when the numerator and denominator have no common factors other than 1.

Front

What is the formula to calculate a percentage of a number?

Back

Percentage = (Part/Whole) x 100.