Students use place value and expanded form to subtract 3-digit numbers. Students apply phonics skills to learn about the preconsonantal nasal -ng and the strategy of a KWL chart. Students use place ...

Subtracting larger numbers in your head is not always easy, so you can use the column method to take one number away from another. You write the larger number above the smaller number, so that the ...

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.