8th Grade Math Review

Front

Write the decimal 0.75 as a fraction in simplest form.

Back

\( \frac{3}{4} \)

Front

Which number is equivalent to 5^-1?

Back

\( \frac{1}{5} \)

Front

To which real number set do the following real numbers belong: 1/2, -3, 0?

Back

Rational Numbers

Front

What is the value of 18⁰?

Back

1

Front

Which of the following has the greatest value: 3.5 x 10⁴, 2.1 x 10⁶, 7.2 x 10⁷, 9.9 x 10⁵?

Back

7.2 x 10⁷

Front

What is the definition of a rational number?

Back

A number that can be expressed as a fraction \( \frac{a}{b} \) where \( a \) and \( b \) are integers and \( b \neq 0 \).

Front

What is the definition of an irrational number?

Back

A number that cannot be expressed as a simple fraction; its decimal form is non-repeating and non-terminating.

Front

What is the rule for exponents: a⁰?

Back

Any non-zero number raised to the power of 0 is 1.

Front

What is the scientific notation for 5000?

Back

5 x 10³

Front

How do you convert a fraction to a decimal?

Back

Divide the numerator by the denominator.