Tens and Ones — Let's Practise!
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Basics on the topic Tens and Ones — Let's Practise!
Understanding Tens and Ones – Introduction
Get a piece of paper and a pencil ready because today we're going to practise 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 become 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 groups 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 practising tens and ones to become a maths whiz! Check out more fun maths problems and activities on our website.
Tens and Ones – Frequently Asked Questions
Tens and Ones — Let's Practise! exercise
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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 the classroom. There are 3 groups of ten and 7 ones. So, there are 37 markers in total.
SolutionRazzi has counted 52 total pencils. There are 5 groups of ten and 2 ones.
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Find the groups of tens and ones in 2-digit numbers.
HintsRemember, the value of a digit changes depending on where it is placed. Use the place value chart to remind you of the value of each digit.
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.
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How many tens and ones?
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.
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Find the groups of ten in a 2-digit 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.
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Label the tens and ones places.
HintsThe number 18 has one group of ten and 8 groups of one.
Use this image to help with labelling 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.
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How many hundreds, tens and ones?
HintsLook at the place value chart. The number 294 has 2 hundreds, 9 tens and 4 ones.
In the number 483, how many hundreds are there?
In this example 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.
