BBC1 年
Adding 3-digit and 2-digit numbers
It's helpful when you're adding two-digit or three-digit numbers together. When you do column addition ... 3 tens + 2 tens + 1 ten (from the regrouping) = 6 tens Image caption, That is 60.
BBC2 年
Adding 3-digit and 2-digit numbers
It's helpful when you're adding two-digit or three-digit numbers together. When you do column addition ... 3 tens + 2 tens + 1 ten (from the regrouping) = 6 tens Image caption, That is 60.