Have you ever had a student who has struggle with adding and subtracting? Especially with two digit and three digit numbers? Well I’ve got a great way to share with you on how I teach adding and subtracting with two and three digit numbers, especially with borrowing and carrying over! oh, and best of all, it’s FREE!
Here’s what you need…. 1/2 sheet of poster board, masking tape, index cards, Sharpie, Velcro, laminate, and a ruler.
Here is the sample. Allowing students to physically move over numbers and replace them with others really helps them to understand the concepts of borrowing and carrying over. I’ve added counting sticks, bundles of tens in straw forms, whatever else to help students to really cement the concept. This has really helped students to finally “get it”.
I’d love to hear what ways you work to teach adding or subtracting with borrowing or carrying over!
Happy Computing! 😉