Adding and Subtracting Decimals (Word Problems)

Front

What is a decimal?

Back

A decimal is a way of representing numbers that are not whole numbers, using a point (.) to separate the whole number part from the fractional part.

Front

How do you add decimals?

Back

To add decimals, align the numbers by the decimal point and add as you would whole numbers, placing the decimal point in the sum directly below the other decimal points.

Front

How do you subtract decimals?

Back

To subtract decimals, align the numbers by the decimal point and subtract as you would whole numbers, placing the decimal point in the difference directly below the other decimal points.

Front

What does it mean to combine amounts in word problems?

Back

Combining amounts in word problems usually means adding the values together to find a total.

Front

What does it mean to find the remaining amount in word problems?

Back

Finding the remaining amount usually involves subtracting one value from another to see what is left.

Front

If Tucker bought 2.78 pounds of melon and 2.27 pounds of cherries, how do you find the total weight of fruit he bought?

Back

Add 2.78 and 2.27 to get 5.05 pounds.

Front

If it rained 0.68 inches on Saturday and 0.02 inches on Sunday, how do you find the total rainfall?

Back

Add 0.68 and 0.02 to get 0.70 inches.

Front

If Steve gives $78.88 to Gerald from $95.61, how do you find out how much money Steve has left?

Back

Subtract $78.88 from $95.61 to get $16.73.

Front

If a bee colony produced 0.6 pounds of honey and bears ate 0.3 pounds, how do you find out how much honey remains?

Back

Subtract 0.3 from 0.6 to get 0.3 pounds.

Front

If Judith had $93.13 worth of oranges and has $36.23 left, how do you find out how much money she started with?

Back

Add $93.13 and $36.23 to get $129.36.