Regrouping
📖
Definition Changing value between tens and ones while keeping the total the same.
🧒 In Simple Words
Regrouping means trading 10 ones for 1 ten, or 1 ten for 10 ones.
📌 Example
In 27 + 15, 12 ones are regrouped into 1 ten and 2 ones.
✏️ Use It in a Sentence
"I used regrouping to solve 43 - 18."