How can you add and subtract by making a ten?
Make a ten to Add
Observe the pictures!
8 + 5 = ?
When you use this strategy, always look at the bigger number first. The bigger number is 8.
I know that if I have a 8, I need 2 more to make 10. So you can decompose(or separate) 5 into 2 and 3.
Know you can add 8+2 to make 10. Then you add 10 + 3 to make 13. So 8+5=13
Make a Ten to Subtract
Watch the video!
Grab your math journal and practice the make a ten strategies to add and subtract.