What Do I Need to Know About Ones and Tens to Use Strategies to Solve Facts Within 20?
Numbers, such as 64, have two digits. Each digit is a different place value.
The left digit is the tens’ place. It tells you that there are 6 tens.
Therefore, there are 6 sets of 10, plus 4 ones in the number 64.
The last or right digit is the ones’ place which is 4.
Now, can you think of another way to show this number? What if I said you could only use 5 tens? How many ones would you use to show the number 64?
The video link below explains how to regroup ones as tens.
In the link below you will see a short video explaining place value with the number 25.