Learn about number bonds to 100 using tens and ones. 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 ...

Let's look at another subtraction. It's not possible to subtract ... Rename 3 as 13 and then subtract: 13 - 7 = 6 If you can subtract two 3-digit numbers from each other, then you can use the ...