2nd Grade Math

Building on first grade foundations with addition, subtraction, and early problem-solving skills.

Understanding AdditionUnderstanding SubtractionWord Problems and Problem-Solving
Adding and Subtracting Two-Digit NumbersSolving Problems with More Than One StepUsing Number Lines and Tools
Math at the Grocery StoreMath at HomeMath with Friends and Games
Using Pictures and DrawingsCheck Your WorkCounting On and Counting Back
Understanding Additi...Understanding Subtra...Word Problems and Pr...Adding and Subtracti...Solving Problems wit...Using Number Lines a...Math at the Grocery ...Math at HomeMath with Friends an...Using Pictures and D...Check Your WorkCounting On and Coun...
Basic Concepts

Understanding Subtraction

What Is Subtraction?

Subtraction is when you take some away from a group and see how many are left. It's like eating some of your cookies and counting how many you have left!

How Subtraction Works

In a subtraction problem, you start with a big number and take away a smaller number. The answer is called the difference.

Ways to Subtract

  • Cross out pictures to see what remains.
  • Count backward on a number line.
  • Use your fingers to take away.

Subtraction in Your Life

If you have 10 crayons and give 4 to a friend, you use subtraction to see how many crayons you have left.

Examples

  • You have 8 balloons. 3 float away. 8 - 3 = 5 balloons left.

  • There are 6 cookies. You eat 2. 6 - 2 = 4 cookies left.

In a Nutshell

Subtraction means taking away and finding what remains.

Next
Word Problems and Problem-Solving