Addition and Subtraction Strip Diagrams

Front

What is a strip diagram?

Back

A strip diagram is a visual representation used to show the relationship between numbers in addition and subtraction problems.

Front

What does the equation 86 - 26 = P represent in a strip diagram?

Back

It shows that if you take away 26 from 86, you find the value of P.

Front

How do you solve for S in the equation 33 + 44 + S = 100?

Back

You subtract 33 and 44 from 100 to find S.

Front

What does the equation 55 + 73 = K mean?

Back

It means that K is the total when you add 55 and 73 together.

Front

What is the purpose of using equations with strip diagrams?

Back

They help to understand the relationships between numbers and how to solve for unknowns.

Front

What does the equation 200 + 100 + 100 + 50 + H = 800 represent?

Back

It shows that when you add 200, 100, 100, and 50, and then add H, the total equals 800.

Front

How can you find D in the equation 400 - 206 = D?

Back

You subtract 206 from 400 to find the value of D.

Front

What is the first step in solving an addition problem using a strip diagram?

Back

Identify the total and the parts that make up that total.

Front

What is the first step in solving a subtraction problem using a strip diagram?

Back

Identify the whole and the part that is being taken away.

Front

What does the term 'unknown' mean in a math equation?

Back

An unknown is a value that we do not know yet and need to find.