## Subtracting with regrouping (borrowing) | Early Math | Khan Academy

Learn how to subtract 23 from 65 by thinking about tens and ones.Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math...

## Math Antics - Multi-Digit Addition

Learn how to carry when adding a three-digit number.Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/arithmetic/a...

## Column subtraction of 3 digit numbers using place value counters - with and without exchanging

In this video we use place value counters / discos to help children understand column subtraction. We begin by looking at subtraction without exchanging, the...

## Column addition using place value counters, with and without regrouping

In this video we use place value counters to help children understand column addition with 2 3 digit numbers. We begin by looking at addition without regrouping...

## Column subtraction with dienes base 10 (without and with exchanging)

In this video we use Dienes base 10 to help children understand column subtraction. We begin by looking at subtraction without exchanging, then looking at su...

## Column addition using Dienes (without and with regrouping)

In this video we use Dienes base 10 to help children understand column addition. We begin by looking at addition without regrouping, then looking at addition...