2-Digit Addition and Subtraction Using a Number Line

Front

What is 45 + 51?

Back

96

Front

What is 37 - 9?

Back

28

Front

What is 28 - 9?

Back

19

Front

If Ms. Flory has 28 apples and Ms. Delouis gives her 10 more, do I add or subtract?

Back

Add

Front

What is 13 - 5?

Back

8

Front

What does a number line help us do?

Back

It helps us visualize addition and subtraction.

Front

What is the first step in adding two numbers using a number line?

Back

Start at the first number.

Front

When subtracting on a number line, which direction do you move?

Back

You move to the left.

Front

What is the result of 20 + 15?

Back

35

Front

What is the result of 50 - 22?

Back

28