Do you have students still using their fingers or counting up by ones for two-digit addition problems?

This worksheet/activity is perfect for students who need to develop strategies for two-digit addition beyond counting by ones using ten frames, bar models, and number lines. It is intentionally designed to help students see how the repeated reasoning of making 10's can be helpful for mental addition. It would be a great investigation to follow up on a series of addition number talks because the making 10's strategy is especially helpful for mental math.

For example:

"74+19, how many until the next 10? 6 so I'll borrow 6 from 19 and then add 13 to 80 to get 93."

This activity is most aligned with 2nd/3rd grade math, but I've used it to tutor students as old as 6th grade who were struggling with multiplication facts due to difficulties with mentally adding numbers without counting up by ones.