Adding Decimals Using Models

Front

What is a decimal?

Back

A decimal is a number that includes a decimal point, which separates the whole number part from the fractional part.

Front

How do you compare decimals?

Back

To compare decimals, align the decimal points and compare digit by digit from left to right.

Front

What does it mean to add decimals?

Back

Adding decimals means combining two or more decimal numbers to find their total.

Front

What is the value of 0.7 + 0.44?

Back

0.7 + 0.44 = 1.14.

Front

How do you represent 0.32 + 0.17 using a model?

Back

You can use a number line or base ten blocks to visually show the addition of 0.32 and 0.17.

Front

What is the sum of 0.2 and 0.3?

Back

0.2 + 0.3 = 0.5.

Front

What is the first step in adding decimals?

Back

The first step is to align the decimal points of the numbers being added.

Front

What is the difference between 0.73 and 0.23?

Back

0.73 - 0.23 = 0.50.

Front

How can you check your addition of decimals?

Back

You can check your addition by estimating the sum or by using the inverse operation (subtraction).

Front

What is a model in math?

Back

A model in math is a visual representation that helps to understand and solve mathematical problems.