Many Ways to Make a Number

Show 327 as 3 hundreds 2 tens 7 ones, and as 2 hundreds 12 tens 7 ones.

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

What children learn in Level 12

Here is 327: 3 hundreds, 2 tens, and 7 ones.
Let's break one hundred into 10 tens. Tap a hundred!
Now there are 2 hundreds, 12 tens, and 7 ones. Is it still 327? Yes! 200 plus 120 plus 7 is 327.
Nothing was added and nothing was taken away. The blocks just changed shape, so the number stays the same.
You can break a ten into 10 ones too. 2 hundreds, 11 tens, and 17 ones is still 327!
Your turn! Build 145 with no hundreds at all. You already have 10 tens.
14 tens and 5 ones is 145. There are many ways to make a number!

Georgia's K-12 Mathematics Standards:

2.NR.1.1 — Explain the value of a three-digit number using hundreds, tens, and ones in a variety of ways.