CFA Grade 8: 8.NS.1

Front

What is a repeating decimal?

Back

A repeating decimal is a decimal fraction that eventually repeats the same sequence of digits indefinitely. For example, 0.666... is a repeating decimal.

Front

Convert the repeating decimal 0.666... into a fraction.

Back

Front

Back

0.333... (which is a repeating decimal).

Front

What is an irrational number?

Back

An irrational number is a number that cannot be expressed as a fraction of two integers. Its decimal representation is non-repeating and non-terminating.

Front

Back

Front

What is the difference between rational and irrational numbers?

Back

Rational numbers can be expressed as a fraction of two integers, while irrational numbers cannot be expressed in this way.

Front

Convert the repeating decimal 0.333... into a fraction.

Back

Front

Back

0.4.

Front

Is the number 0.25 rational or irrational?

Back

Front

Back

0.625.