Rational Number Word problems: Adding and subtracting

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 process for subtracting rational numbers?

Back

To subtract rational numbers, find a common denominator, convert each fraction, and then subtract the numerators.

Front

What does it mean to drop in temperature?

Back

Dropping in temperature means that the temperature decreases, which can be represented by a negative change in degrees.

Front

If the temperature is 15 degrees and drops by 30 degrees, how do you calculate the new temperature?

Back

Subtract 30 from 15: 15 - 30 = -15 degrees.

Front

How do you find the total amount completed when adding fractions?

Back

Add the fractions together by finding a common denominator and summing the numerators.

Front

What is the difference between two numbers in terms of depth?

Back

The difference in depth can be found by subtracting the lesser depth from the greater depth.

Front

If a fish is at -7 feet and a turtle is at -2 feet, how do you find the difference in their depths?

Back

Subtract the turtle's depth from the fish's depth: -2 - (-7) = 5 feet.

Front

What happens to a negative account balance when money is deposited?

Back

When money is deposited into a negative account balance, the balance increases towards zero.

Front

How do you calculate the new balance after a deposit?

Back

Add the deposit amount to the current balance: -$275.78 + $539.20 = $263.42.