Using Bar Models: Addition and Subtraction

Front

What is a bar model?

Back

A bar model is a visual representation used to show numbers and their relationships in addition and subtraction problems.

Front

How do you use a bar model for addition?

Back

To use a bar model for addition, draw two bars representing the numbers being added, then combine them to find the total.

Front

How do you use a bar model for subtraction?

Back

To use a bar model for subtraction, draw a bar for the total and a bar for the number being subtracted, then find the difference.

Front

What is the sum of 115 and 96?

Back

211

Front

If Mr. Henry sells 271 sandwiches in the morning and 127 in the afternoon, how many sandwiches does he sell in all?

Back

398

Front

Max has 92 seashells. If Darren has 89 more, how many seashells does Darren have?

Back

181

Front

How many seashells do Max and Darren have in all?

Back

273

Front

The school library has 376 Spanish books. If there are 619 more English books, how many English books are there?

Back

995

Front

If 280 children are playing in the snow and 98 are girls, how many boys are playing?

Back

182

Front

What is the first step in solving a word problem using a bar model?

Back

Identify the numbers and the operation needed (addition or subtraction).