Subtraction Facts to 20

## Taking Away Numbers Up to 20 Subtraction means taking something away and finding out how many are left. In second grade, you'll practice subtracting numbers up to 20. ### Why Subtraction Is Important Subtraction helps you know what remains when you give away or lose something. It's useful when sharing, shopping, or playing games. ### Simple Subtraction Tricks - Start with the bigger number and count down. - Use drawings or objects to help you see what’s left. - Practice using number lines to jump backwards. ### Subtraction in Daily Life Whenever you eat some cookies from a plate, you’re subtracting! If you start with 8 cookies and eat 3, how many are left? That's subtraction! ### Word Problems Subtraction often shows up in stories or problems about sharing or losing items.