Learning goal
I can add and subtract two-digit numbers.
Key words
addsubtracttensonesexchange
Add and Subtract to 100
Use number facts and mental or written methods to add and subtract within 100.
Try these first
- Add ones: 34 + 5 = __.
- Add tens: 46 + 20 = __.
- Subtract: 72 - 18 = __.
Try it, then check your answer
You can try these without a profile. Create a private learning profile if you want checked answers to build a mastery map and Mistake Memory.
Set up private learning journey34 + 5 = __.
46 + 20 = __.
72 - 18 = __.
What a secure answer looks like
- 1. 39
- 2. 66
- 3. 54