4+18 becomes 22. We add the units digit to the units digit and carry over the ten to the tens place and add. For e.g. 8+4=12. We write down 2 in the units place and take the 1 and add it to the tens place of 18 which is one.For more details watch the video below:
Math Antics - Multi-Digit Addition
Learn More at mathantics.com Visit http://www.mathantics.com for more Free math videos and additional subscription based content!