Adding and Subtracting Two-Digit Numbers

## Working With Bigger Numbers Now that you know about place value, you can add and subtract numbers up to 100! ### How to Add and Subtract Two-Digit Numbers - Line up the numbers by place value (tens and ones). - Add or subtract the ones place first. - Then add or subtract the tens place. - If the ones add up to 10 or more, you carry to the tens! ### Real-World Uses You use these skills when counting money, shopping, or keeping score in a game. ### Practice Tips Use paper, blocks, or coins to help you see the numbers.