Addition Using The Expanded Column Method

For more maths help & free games related to this, visit: www.makemymathsbetter.com

First, write the numbers in columns. For example;426 + 138

H T

4

U

2 6

1 3 8+

First, write the numbers in columns. For example;426 + 138

H T

4

U

2 6

1 3 8+

Now add up the hundreds:400 + 100 = 500

5 0 0

First, write the numbers in columns. For example;426 + 138

H T

4

U

2 6

1 3 8+

5 0 0

Next add up the tens:20 + 30 = 50

5 0

First, write the numbers in columns. For example;426 + 138

H T

4

U

2 6

1 3 8+

5 0 0

5 0

Then add up the units:6 + 8 = 14 1 4

First, write the numbers in columns. For example;426 + 138

H T

4

U

2 6

1 3 8+

5 0 0

5 0

1 4

Finally add the 3 partial sums:500 + 50 + 14 = 564

5 6 4

The sum can also be done by adding the units first, then the tens and finally the hundreds. For example;

H T

4

U

2 6

1 3 8+

1 4

The sum can also be done by adding the units first, then the tens and finally the hundreds. For example;

H T

4

U

2 6

1 3 8+

1 4

5 0

The sum can also be done by adding the units first, then the tens and finally the hundreds. For example;

H T

4

U

2 6

1 3 8+

5

1 4

5 0

0 0

The sum can also be done by adding the units first, then the tens and finally the hundreds. For example;

H T

4

U

2 6

1 3 8+

5

1 4

5 0

0 0

5 6 4

For more help with your maths, try my book:mastering multiplication tables

on amazon.com