10 or 100 more or less

Count on or back by 10 or 100 with numbers up to 1,000.

🔍 Step 1 · Understand

First, look at a worked example

What number is 100 more than 867?

💡 The tip : Adding or taking away 10 changes the tens digit; 100 changes the hundreds digit.

🤔 Find the answer in your head, then open the solution.

👀 See the solution

Answer: 967

867 + 100 = 967.

10 questions. Take your time, and ask for a hint if you get stuck.