1st Grade Math

Fundamental mathematics concepts for first grade students including basic arithmetic, counting, and number sense.

Counting and Number SenseBasic AdditionBasic SubtractionUnderstanding Place Value
Addition and Subtraction Word ProblemsCounting by Groups (Skip Counting)Understanding Patterns
Math in the Grocery StoreMath at HomeMath on the Playground
Using Visual AidsChecking Your Work
Counting and Number ...Basic AdditionBasic SubtractionUnderstanding Place ...Addition and Subtrac...Counting by Groups (...Understanding Patter...Math in the Grocery ...Math at HomeMath on the Playgrou...Using Visual AidsChecking Your Work
Basic Concepts

Basic Subtraction

Taking Away and Subtracting

Subtraction is about taking some things away from a group. The sign for subtraction is \( - \).

How Subtraction Works

If you start with a group and take some away, subtraction tells you how many are left.

  • If you have 5 cookies and eat 2, you have \( 5 - 2 = 3 \) cookies left.

Using Objects to Subtract

You can use toys, blocks, or even your fingers to help with subtraction. Start with five, take away two, and count what's left.

Subtraction in Life

Subtraction is helpful when you spend or give away things, or want to know how many you have left after using some.

Examples

  • Eating 3 out of 6 grapes and counting the rest.

  • Giving away 2 stickers from a collection of 7.

In a Nutshell

Subtraction means taking away from a group and finding what remains.

Key Terms

Subtraction
Taking away part of a group to see how many are left.
Minus
The sign ( - ) used for subtraction.
Next
Understanding Place Value