Learn how column addition can be used to make adding numbers easier. 10 more and 10 less Learn on how to find 10 more and 10 less of a given 2-digit number. Add and subtract 2-digit and 1-digit ...

Add two-digit numbers Learn how to add two-digit numbers. Adding 3-digit and 1-digit numbers together Explore examples and a video to show how to add up to 3-digits and 1-digit numbers.