Strip Diagrams Addition and Subtraction

Front

What is Addition?

Back

Addition is the process of finding the total or sum by combining two or more numbers.

Front

What is Subtraction?

Back

Subtraction is the process of finding the difference between two numbers by taking one number away from another.

Front

What does a strip diagram represent?

Back

A strip diagram visually represents numbers and their relationships, often used to solve addition and subtraction problems.

Front

How do you identify if a problem is Addition or Subtraction?

Back

Look for keywords: 'total' or 'combined' suggests addition, while 'difference' or 'less' suggests subtraction.

Front

What is the equation for 1,000 plus 600?

Back

1,000 + 600 = 1,600.

Front

What is the equation for 1,000 minus 600?

Back

1,000 - 600 = 400.

Front

If 983 + 734 + 240 = S, what is S?

Back

S = 1,957.

Front

If 73 - 55 = K, what is K?

Back

K = 18.

Front

What is the relationship between addition and subtraction?

Back

Addition and subtraction are inverse operations; knowing one helps solve the other.

Front

What does it mean to solve for a variable?

Back

Solving for a variable means finding the value that makes the equation true.