Expanded Column Method Addition
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The document describes the expanded column method for addition. It explains that you write the numbers in columns with the hundreds, tens, and units aligned. You then add the columns starting from the right, adding the units first and carrying numbers to the next column. Finally, you add all the partial sums from each column to get the total. The method allows you to clearly see each step in adding multi-digit numbers.
Expanded Column Method Addition
- 1. Addition Using The Expanded Column Method For more maths help & free games related to this, visit: www.makemymathsbetter.com
- 2. First, write the numbers in columns. For example; 426 + 138 + H 4 1 T 2 3 U 6 8
- 3. First, write the numbers in columns. For example; 426 + 138 + Now add up the hundreds: 400 + 100 = 500 H 4 1 T 2 3 U 6 8 5 0 0
- 4. First, write the numbers in columns. For example; 426 + 138 + H 4 1 T 2 3 U 6 8 5 0 0 5 0 Next add up the tens: 20 + 30 = 50
- 5. First, write the numbers in columns. For example; 426 + 138 U 6 8 0 0 5 Then add up the units: 6 + 8 = 14 T 2 3 5 + H 4 1 0 1 4
- 6. First, write the numbers in columns. For example; 426 + 138 + H 4 1 T 2 3 U 6 8 5 0 0 5 0 1 4 5 6 4 Finally add the 3 partial sums: 500 + 50 + 14 = 564
- 7. The sum can also be done by adding the units first, then the tens and finally the hundreds. For example; + H 4 1 T 2 3 U 6 8 1 4
- 8. The sum can also be done by adding the units first, then the tens and finally the hundreds. For example; + H 4 1 T 2 3 U 6 8 1 4 5 0
- 9. The sum can also be done by adding the units first, then the tens and finally the hundreds. For example; + H 4 1 U 6 8 1 4 5 5 T 2 3 0 0 0
- 10. The sum can also be done by adding the units first, then the tens and finally the hundreds. For example; + H 4 1 T 2 3 U 6 8 1 4 5 0 5 0 0 5 6 4
- 11. For more help with your maths, try my book: mastering multiplication tables on amazon.com