Flashcard: Domain NS

Front

What is a zero pair in mathematics?

Back

A zero pair is a pair of numbers that add up to zero, such as 5 and -5.

Front

What does it mean for a number to be positive?

Back

A positive number is greater than zero.

Front

What does it mean for a number to be negative?

Back

A negative number is less than zero.

Front

What is the sum of a positive number and a negative number?

Back

The sum can be positive, negative, or zero, depending on the values of the numbers.

Front

How do you find a percentage of a number?

Back

To find a percentage of a number, multiply the number by the percentage (as a decimal). For example, 72% of 325 is 0.72 * 325.

Front

What is the decimal equivalent of -4/15?

Back

The decimal equivalent of -4/15 is a repeating decimal: -0.2666... (where 6 repeats).

Front

What is a terminating decimal?

Back

A terminating decimal is a decimal that has a finite number of digits after the decimal point.

Front

What is a repeating decimal?

Back

A repeating decimal is a decimal that has one or more digits that repeat infinitely.

Front

What is the relationship between fractions and decimals?

Back

Fractions can be converted to decimals by dividing the numerator by the denominator.

Front

What does it mean for a number to be irrational?

Back

An irrational number cannot be expressed as a simple fraction; its decimal representation goes on forever without repeating.