Applying operations on rational numbers to solve mathematical and real-world problems

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

How do you add two rational numbers with different denominators?

Back

To add two rational numbers with different denominators, find a common denominator, convert each fraction, and then add the numerators.

Front

What is the order of operations in mathematics?

Back

The order of operations is a set of rules that dictates the sequence in which calculations are performed: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right) - often abbreviated as PEMDAS.

Front

What is the result of 24 ÷ 6 + 4²?

Back

20

Front

If the current temperature is 58°F and it dropped 4°F, what was the temperature one hour ago?

Back

62°F

Front

How do you subtract a larger rational number from a smaller one?

Back

When subtracting a larger rational number from a smaller one, the result is a negative rational number.

Front

What is the result of 2 + 3 x 8?

Back

26

Front

If Marcy has $128 and writes a check for $215, what is her account balance?

Back

-$7

Front

How do you multiply two rational numbers?

Back

To multiply two rational numbers, multiply their numerators together and their denominators together.

Front

What happens to the temperature if it increases by 2°F from 60°F?

Back

The new temperature would be 62°F.