Unit 1 Real Numbers Pretest

Front

Back

0.4

Front

Back

x = ±14

Front

What is the square root of 15 rounded to the nearest tenth?

Back

3.9

Front

Back

Whole Number, Integer, Rational, Real

Front

What is a rational number?

Back

Front

What is 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 square root of a number?

Back

A value that, when multiplied by itself, gives the original number.

Front

What is the difference between integers and whole numbers?

Back

Whole numbers include all positive numbers and zero; integers include all whole numbers and their negative counterparts.

Front

What is the definition of a real number?

Back

Any number that can be found on the number line, including both rational and irrational numbers.

Front

How do you convert a decimal to a fraction?

Back

Write the decimal as a fraction with a denominator of 10, 100, etc., depending on the number of decimal places, then simplify.