Here’s the baby steps I have students take for subtracting on an open number 👇 First we just focus on the patterns of subtracting 10 and 1 from a 2-digit number. Then students get practice where the jumps are already made and they can just focus on using those patterns to subtract. After that, I model to students how to make their own jumps and once again apply those patterns to subtract. Soon students are ready for all the steps involved with subtracting on an open number line. And with enough