Addition involves finding the total of two or more numbers or amounts. There are different things you can use to help you add. You can use number lines, place value charts and place value counters.

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Read, write, & compare multi-digit numbers using symbols including expanded form. Read and write multi-digit whole numbers using base-ten numerals, number names, and expanded form. Compare two ...

Column addition is a way of adding numbers together. It's helpful when you're adding two-digit or three-digit numbers together. When you do column addition, you lay out the numbers you are adding ...