Multi-digit Addition

Add numbers with 4 or more digits fluently

What You'll Learn

  • Add 4-digit and 3-digit numbers with regrouping
  • Estimate sums to check reasonableness
  • Use place value understanding to add efficiently

📖Adding Large Numbers

When adding large numbers like 4,567 + 892, line up the digits by place value. Start from the ones place and work left. Remember to carry when a column sum is 10 or greater.

💡

Estimate first by rounding to check if your answer is reasonable: 4,567 + 892 is about 4,600 + 900 = 5,500.