Tens and Ones

Read a two-digit number as tens and ones.

Warm-up, learn, try it together, practice, then a quick check. About 15 minutes.

What children learn in Level 9

A two-digit number has a tens digit and a ones digit. In 47, the 4 tells the tens, and the 7 tells the ones.
The place matters! 47 and 74 use the same digits, but 74 has 7 tens. That's much more.
Your turn! Build 63: 6 tens and 3 ones.
To write a number from blocks: count the tens and write that digit first. Then count the ones and write that digit next.
Tens digit first, then ones digit. That's how every two-digit number works!

Georgia's K-12 Mathematics Standards:

1.NR.1.2 — Explain that the two digits of a 2-digit number represent the amounts of tens and ones.