8th Gr Final Review #2 - Ch 2 Rational Numbers

Front

What is a rational number?

Back

A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

Front

What is an irrational number?

Back

An irrational number is a number that cannot be expressed as a simple fraction; it cannot be written as a ratio of two integers.

Front

Solve: 80 + (-8) = ?

Back

72

Front

Is the number 0.737293787920917... rational or irrational?

Back

Irrational

Front

Find the change in temperature if it drops from 44 degrees Fahrenheit to -7 degrees Fahrenheit.

Back

-51

Front

Is the number 0.56565656... rational or irrational?

Back

Rational

Front

Solve: -15 - 3 = ?

Back

-18

Front

What is the absolute value of -7?

Back

7

Front

What is the absolute value of 5?

Back

5

Front

How do you add a positive and a negative number?

Back

When adding a positive and a negative number, subtract the smaller absolute value from the larger absolute value and take the sign of the number with the larger absolute value.