8.NS.A.1 Rational vs. Irrational Numbers No Calc

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

Is the sum of two rational numbers always rational?

Back

Yes, the sum of two rational numbers is always rational.

Front

Is the product of two irrational numbers always rational?

Back

No, the product of two irrational numbers is not always rational.

Front

What is an integer?

Back

An integer is a whole number that can be positive, negative, or zero, but cannot be a fraction or decimal.

Front

Which of the following is an integer: -3, 1/4, -12.5, 0.454545...?

Back

-3 is an integer.

Front

Back

Front

How do you convert a repeating decimal to a fraction?

Back

To convert a repeating decimal to a fraction, let x equal the decimal, multiply by a power of 10 to shift the decimal point, and then subtract the original equation from this new equation.

Front

What is the fraction representation of the repeating decimal 0.112112...?

Back

Front

Is every whole number a rational number?

Back

Yes, every whole number is a rational number because it can be expressed as a fraction with a denominator of 1.