Building 2-Digit Numbers

Combine tens and ones to make numbers

What You'll Learn

  • Build numbers from tens and ones
  • Understand that 2 tens = 20, 3 tens = 30, etc.
  • Write numbers given tens and ones

📖Building Numbers

If you have 4 tens and 7 ones, you can build the number 47! The tens digit comes first, then the ones digit.

💡

5 tens = 50, 6 tens = 60, 7 tens = 70. Each ten adds 10 to your number!