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Column addition rules

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Not my work uploaded from google for qr code use

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Column addition rules

  1. 1. Rules for Expanded Column Addition A few tips to help you out!
  2. 2. Write your numbers in the right place!! • Put your numbers underneath each other. HTU 135 + 42 • Remember your 100s, 10s and units!!
  3. 3. Always start with the units! • Start with the smallest numbers. (UNITS) 135 + 42 7 (5 + 2) • Work from right to left.
  4. 4. Next go on to add the tens! • Put the tens underneath the units. 135 + 42 7 (5 +2) 70 (30 + 40) • DON’T FORGET THAT YOU ARE ADDING 10S NOT UNITS!
  5. 5. Finally add your 100s and total it all up!! 135 + 42 7 (5 + 2) 70 ( 30 + 40) 100 ( 100 + 0) 177
  6. 6. So, stick with these and you’ll be fine!! • Put the numbers in the right place. • Always start with the units. • Next go on to add the 10s. • Don’t forget that you’re adding 10s now! • Then add the 100s and total it all up!
  7. 7. So, stick with these and you’ll be fine!! • Put the numbers in the right place. • Always start with the units. • Next go on to add the 10s. • Don’t forget that you’re adding 10s now! • Then add the 100s and total it all up!

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