2-Digit + 2-Digit (With Regrouping)

Add two-digit numbers with regrouping

What You'll Learn

  • Recognize when regrouping is needed
  • Regroup 10 ones as 1 ten
  • Complete addition with regrouping

📖Regrouping

When ones add up to 10 or more, we regroup! Trade 10 ones for 1 ten.

✏️Example

38 + 45 = ? Ones: 8 + 5 = 13 (write 3, carry 1). Tens: 3 + 4 + 1 = 8. Answer: 83!