KingMathSubtraction without borrowing
Take away a 2-digit number without breaking a ten.
🔍 Step 1 · Understand
First, look at a worked example
21 − 11 = ?
💡 The tip : Take away the tens first: 21 − 10.
🤔 Find the answer in your head, then open the solution.
👀 See the solution✅ The solution
Answer: 10
21 − 10 = 11, then 11 − 1 = 10. So 21 − 11 = 10.
🎯 Step 2 · Your turn!
10 questions. Take your time, and ask for a hint if you get stuck.