KingMath
← All CE1 · age 7 exercises

Addition up to 1,000

Add two three-digit numbers.

🔍 Step 1 · Understand

First, look at a worked example

133 + 296 = ?

💡 The tip : Add the hundreds first, then the rest.

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

👀 See the solution

Answer: 429

Hundreds: 300. The rest: 129. So 133 + 296 = 300 + 129 = 429.

🎯 Step 2 · Your turn!

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