When you are solving an addition calculation with a two-digit number, you need to think about tens and ones. A place value chart can help you to see the value of each digit in a number. For example, ...

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.

Add and subtract three-digit numbers with Springling and Minni and Subbi. Join Mrs. McCartney for a Number Talk with D.C. and Value Pak. We'll add and subtract three-digit numbers with Springling and ...