Tens and Ones — Let's Practice!
Basics on the topic Tens and Ones — Let's Practice!
Understanding Tens and Ones – Introduction
Get a piece of paper and a pencil ready because today we're going to practice tens and ones. It’s a cool way to understand numbers better and count faster. Ready to begin? Let's go!
What Are Tens and Ones?
Tens and ones refer to the value of a number based on its position. Using groups of ten can help us count faster and understand numbers better.
For example, in the number 53, the digit 5 is in the tens place, and the digit 3 is in the ones place. This means there are five groups of ten and three ones. Let’s practice this with some fun problems!
Tens and Ones – Example
Let's solve a problem using tens and ones:
Problem
Skylar has found 16 butterflies. What do the numbers 1 and 6 tell us when they are put together?
Solution
Follow these simple steps to find the solution.
Step  Explanation  Result 

Look at the number 16  It is made up of the digits 1 and 6  
Identify the tens place  The digit 1 is in the tens place  1 group of ten 
Identify the ones place  The digit 6 is in the ones place  6 ones 
Combine the tens and ones  There is one group of ten and six ones  16 butterflies 
So, Skylar has 16 butterflies!
Tens and Ones – Guided Practice
Let's try another problem together.
Problem
Henry has found 40 grasshoppers. What do the numbers 4 and 0 tell us when they are put together?
So, Henry has 40 grasshoppers!
Understanding Tens and Ones – Application
Let's solve a problem using tens and ones:
Problem
Skylar found 79 buttons. What do the numbers 7 and 9 tell us when they are put together?
Solution
Follow these simple steps to find the solution.
So, Skylar has 79 buttons!
Tens and Ones – Examples
To help you get more fluent in understanding tens and ones, have a look at some more examples and complete them by following the steps.
Problem  Tens Place  Ones Place  Total Number 

9  0 group of ten  9 ones  9 
70  7 groups of ten  0 ones  70 
99  9 groups of ten  9 ones  99 
21  2 groups of ten  1 one  21 
Tens and Ones – Summary
Key Learnings from this Text:
 Tens and ones help us understand the value of numbers based on their position.
 The tens place shows how many groups of ten, and the ones place shows the remaining ones.
 Using groups of ten makes counting faster and easier.
Keep practicing tens and ones to become a math whiz! Check out more fun math problems and activities on our website.
Tens and Ones – Frequently Asked Questions
Transcript Tens and Ones — Let's Practice!
Razzi says get these items ready (...) Because today we're going to practice... Tens and ones. It's time to begin! When someone says this, they are talking about the value of a number depending on where it is. Using groups of ten can be helpful to count faster. Skylar has found sixteen butterflies, and sixteen is made up of two numbers, one and six. What do these numbers tell us when they are put together? It tells us that there is one group of ten, and six ones! Let's tackle the next problem! Henry has found forty grasshoppers! Forty is made up of one four and one zero. What do these numbers tell us when they are put together? It tells us that there are four groups of ten and zero ones! Let's tackle the next problem! Skylar found fiftythree buttons, fiftythree is made up of a five and a three. What do these numbers tell us when they are put together? It tells us that there are five groups of ten and three ones! Let's tackle the last problem! Henry finds sixtyfive books. Sixtyfive has one six and one five. What do these numbers tell us when they are put together? It tells us that there are six groups of ten and five ones! Razzi had so much fun practicing with you today! See you next time!
Tens and Ones — Let's Practice! exercise

What number is it?
HintsLook at the number 64. The 6 is in the tens place, which means there are 6 groups of ten. The 4 is in the ones place, which means there are 4 groups of one.
Look at the number 29. The 2 is in the tens place, which means there are 2 groups of ten. The 9 is in the ones place, which means there are 9 groups of one.
Razzi has counted all of the markers in his classroom. There are 3 groups of ten and 7 ones. So, there are 37 total markers.
SolutionRazzi has counted 52 total pencils. There are 5 groups of ten and 2 ones.

Find the groups of tens and ones in 2digit numbers.
HintsRemember, the value of a number changes depending on where it is placed. This chart reminds you when you count groups of tens and groups of ones.
In this example, the number 34 has 3 groups of ten and 4 groups of one.
Solution The number 71 has 7 groups of ten and 1 group of one.
 The number 15 has 1 group of ten and 5 groups of one.
 The number 96 has 9 groups of ten and 6 groups of one.
 The number 23 has 2 groups of ten and 3 groups of one.

Match the groups of tens and ones to 2digit numbers.
HintsUse the place value chart to help determine groups of tens and ones.
If a number is less than ten, there will be 0 groups of ten. For example, the number 7 is shown with 0 tens and 7 ones, but we would just say 7 ones.
If a number has 0 ones, that means it can be counted just by tens. For example, the number 90 has 9 groups of ten and 0 ones, but we would just say there are 9 tens. So, count by ten 9 times to find the value: 10, 20, 30, 40, 50, 60, 70, 80, 90.
Solution The number 46 has 4 tens and 6 ones.
 The number 30 has 3 tens and 0 ones, but we would just say 3 tens.
 The number 9 has 0 tens and 9 ones, but we would just say 9 ones.
 The number 27 has 2 tens and 7 ones.
 The number 85 has 8 tens and 5 ones.
 The number 36 has 3 tens and 6 ones.

Find the groups of ten in a 2digit number.
HintsLook at the number 16. The 1 in the tens place is highlighted, which means there is 1 ten.
Look at the number 40. The 4 in the tens place is highlighted, which means there are 4 tens.
For this question, you do not need to count the groups of ones!
SolutionFor each number, only look at the tens place to determine how many groups of ten there are. You do not need to look at the ones place for this question.
2 tens
 The number 29 has 2 tens and 9 ones.
 The number 24 has 2 tens and 4 ones.
 The number 35 has 3 tens and 5 ones.
 The number 32 has 3 tens and 2 ones.
 The number 40 has 4 tens and 0 ones, but we would just say 4 tens.
 The number 42 has 4 tens and 2 ones.
 The number 57 has 5 tens and 7 ones.
 The number 52 has 5 tens and 2 ones.

Label the tens and ones places.
HintsThe number 18 has one group of ten and 8 groups of one.
Look at this picture to label your place value chart.
SolutionThe number 1 is in the tens place and the number 8 is in the ones place. This means there is 1 group of ten and 8 groups of one that make up the number 18.

Name groups of hundreds, tens, and ones in a 3digit number.
HintsLook at the place value chart. The number 294 has 2 hundreds, 9 tens, and 4 ones.
Be sure to match each number with the correct place. Remember, the value of a number depends on where it is.
There are 361 books. The 3 in the hundreds place means there are 3 groups of 100. The 6 in the tens place means there are 6 groups of 10. The 1 in the ones place means there is 1 group of 1.
SolutionThe number 483 is made of 4 hundreds, 8 tens, and 3 ones.
 If you had 3 hundreds, 1 ten, and 4 ones, that would make the number 314.
 If you had 4 hundreds, 3 tens, and 7 ones, that would make the number 437.
 If you had 8 hundreds, 2 tens, and 1 one, that would make the number 821.