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.

Tags

CCSS.5.NBT.A.2

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.

Tags

CCSS.7.NS.A.1C

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.

Tags

CCSS.7.NS.A.1C

Front

What is the sum of 1/2 and 1/3?

Back

The sum of 1/2 and 1/3 is 5/6.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

What is the difference between -3 and 5?

Back

The difference between -3 and 5 is -8.

Tags

CCSS.7.NS.A.1C

Front

How do you calculate the change in temperature from -8°F to 43°F?

Back

To calculate the change in temperature, subtract the initial temperature from the final temperature: 43 - (-8) = 51°F.

Tags

CCSS.7.NS.A.1C

Front

If the temperature drops from 3°C to -9°C, what is the total change?

Back

The total change in temperature is -12°C.

Tags

CCSS.7.NS.A.1C

Front

What is the result of adding a negative number to a positive number?

Back

Adding a negative number to a positive number decreases the value of the positive number.

Tags

CCSS.7.NS.A.1C

Front

How do you represent a temperature drop of 12 degrees from 3 degrees Celsius?

Back

You represent it as 3 - 12 = -9 degrees Celsius.

Tags

CCSS.7.NS.A.1C

Front

What is the final account balance if Mr. Smith has -$275.78 and deposits $539.20?

Back

Mr. Smith's final account balance is $263.42.

Tags

CCSS.7.NS.A.1C