Common Core: Kindergarten Math

Common Core: Kindergarten Math introduces young learners to foundational math concepts through engaging activities and interactive lessons.

Advanced Topics

Addition and Subtraction Basics

Making Numbers Bigger and Smaller

Addition means putting things together to make a bigger group. Subtraction means taking some away to make a smaller group.

Using Objects to Add and Subtract

You can use your fingers, blocks, or snacks to see how adding or taking away changes the total.

How to Write Addition and Subtraction

Addition can look like \( 2 + 3 = 5 \). Subtraction can look like \( 5 - 2 = 3 \).

Solving Everyday Problems

Addition and subtraction help you figure out how many toys you have if you get more, or how many cookies are left after sharing.

Key Formula

\[a + b = c\]

Examples

  • You have 2 candies and get 3 more. Now you have 5 candies.

  • You have 6 apples and eat 2. Now you have 4 apples.

In a Nutshell

Addition puts groups together; subtraction takes some away.

Key Terms

Addition
Joining two or more groups to make a bigger group.
Subtraction
Taking away from a group to make it smaller.