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

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 to an equivalent fraction with that denominator, and then add the numerators.

Front

What is the result of -4 - (-2)?

Back

-4 + 2 = -2.

Front

What is the sum of 1.70 + 4.65?

Back

The sum is 6.35.

Front

How do you subtract a decimal from another decimal?

Back

Align the decimal points and subtract as you would with whole numbers, then place the decimal point in the answer.

Front

What is the change Anusha receives after buying 4 pairs of socks for $2.25 each and a belt for $7.50 from a $20 bill?

Back

Anusha receives $3.50 in change.

Front

What is 7.9 - 3.47?

Back

The result is 4.43.

Front

What is the simplified value of -2.6 + 5.8?

Back

The simplified value is 3.2.

Front

What is the process of finding an equivalent expression?

Back

Finding an equivalent expression involves using properties of operations, such as the distributive property or combining like terms.

Front

What does it mean to simplify an expression?

Back

To simplify an expression means to reduce it to its simplest form, combining like terms and eliminating unnecessary operations.