Operations with Rational Numbers

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 the result of -17 - 4?

Back

-21

Front

How do you subtract fractions with different denominators?

Back

To subtract fractions with different denominators, find a common denominator, convert the fractions, and then subtract the numerators.

Front

What is -7/8 - 1/2?

Back

-1 3/8

Front

What is the product of two negative numbers?

Back

The product of two negative numbers is positive.

Front

What is the result of -2 × (-5) × (-1) × (-9)?

Back

Positive

Front

What is the Order of Operations?

Back

The Order of Operations is a set of rules that determines the sequence in which calculations are performed: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Front

What is 4 ÷ -2 + -4?

Back

-6

Front

What is the result of -5.7 + 0.9?

Back

-4.8

Front

What happens when you add a positive number to a negative number?

Back

When you add a positive number to a negative number, the result depends on the absolute values of the numbers. If the positive number is larger, the result is positive; if the negative number is larger, the result is negative.