Hello, friends! Today, we’re at a super fun racetrack where we will learn about numbers. We will see which cars are racing and compare their numbers. You might already know a little about place value and how to use base 10 blocks to compare numbers. Now, let’s find out which numbers are bigger or smaller than others!
Do you see the racing helmet? It’s so cool! Look at the number on the car. It’s 25. To compare numbers, we first look at the tens place. How many tens does 25 have? It has two tens and five ones. Great job!
Here comes a race car! What number does it have? It’s 31. Is 31 bigger or smaller than 25? Let’s see. Both numbers have digits in the tens place. Since 3 is bigger than 2, 31 is greater than 25. We use the greater than sign, which looks like this: >, to show that 31 is greater than 25.
Look, there’s another car with a new number. Is this number bigger than 25? First, we check the largest place, which is the tens place. If the tens are the same, we compare the ones place. This is how we use place value to compare numbers.
Can you hear the cars getting ready to race? Let’s compare their numbers. Do you remember where to start? Always start with the largest place on the left. If one number has a 5 in the tens place and the other has a 4, the one with the 5 is bigger. So, 54 is greater than 45, and 45 is less than 54.
Can you find a number smaller than 54? Yes, 25 is smaller than 54. It’s also smaller than 45 because it only has a 2 in the tens place.
Here come two more cars. Are their numbers bigger or smaller than 25? Both have bigger numbers in the tens place, so they are both greater than 25. Remember to look at the tens place first when comparing numbers.
Thanks for joining us at the racetrack! We hope you had fun learning about numbers. See you next time!
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Let’s play a game where you are the race car driver! Draw two race cars on paper and write different numbers on each. Compare the numbers by looking at the tens place first. Decide which car wins the race by having the bigger number. Ready, set, go!
Create a puzzle using base 10 blocks. Draw or use real blocks to represent numbers like 25 and 31. Count the tens and ones to see which number is bigger. Can you solve the puzzle by finding the largest number?
Get into teams and have a relay race. Each team member picks a card with a number on it. Compare your number with the next person in line. Use the greater than or less than sign to show which number is bigger. The team with the most correct comparisons wins!
Look around your classroom or home for numbers on objects. Write them down and compare them using place value. Which numbers are bigger? Which are smaller? Share your findings with a friend!
Use toy cars and a number line drawn on paper. Place the cars on different numbers and compare them. Move the cars up or down the track to show which numbers are greater or less. Can you find the biggest number on your track?
Sure! Here’s a sanitized version of the YouTube transcript:
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[Music]
Hello, everyone! We’re at the racetrack ready to compare some numbers. Let’s see which cars are participating in the race today and which numbers we will compare. You already know about place value and how to compare numbers using base 10 blocks. Now I’ll help you find numbers that are greater than or less than others.
On your mark, get set, go!
Do you like that racing helmet?
See the number? It’s number 25. We can look at the digit in the tens place first to help compare numbers. How many tens does my number have? 25 has two tens and five ones.
Great job! There’s one of the race cars now. What number is it? Is 31 greater or less than 25? Both 25 and 31 have numbers in the tens place. We see that 3 is greater than 2, which means that 31 is greater than 25. We put up the greater than sign with the small pointed side facing the smaller number, so the sign would look like this.
[Music]
Whoa, look! There’s another car with a new number. Is that number greater than 25? Well, first we can look at the largest place, which are the numbers on the far left. They are the same; they’re both two. That’s okay! If the tens place is the same, then we can just compare the ones place. See? We can compare using place value.
[Music]
I can hear some cars getting ready to race! Let’s compare their numbers.
[Music]
Do you remember where we start when we compare? They both have fours and fives in their numbers, but the one with the five in the tens place has a greater value. That’s why we should always start at the left with the largest place. 54 is greater than 45, which also means that 45 is less than 54.
Do you see another number that is less than 54?
[Music]
Yes! 25 is less than 54. It’s also less than 45 because number 25 only has a 2 in the tens place.
[Music]
There are two more cars. Are the numbers greater than or less than 25? It looks like they both have bigger numbers in the tens place, so they are both greater than 25. Remember to look left and compare the tens place first.
On your mark, get set, go!
Thanks for watching, everyone! See you next time.
[Music]
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Let me know if you need any further modifications!
Numbers – Symbols or words used to represent quantities or amounts. – We use numbers to count how many apples are in the basket.
Compare – To look at two or more things to see how they are similar or different. – We compare numbers to see which one is bigger or smaller.
Place – The position of a digit in a number that tells its value. – In the number 45, the digit 4 is in the tens place.
Value – The worth of a digit based on its place in a number. – The value of the digit 5 in the number 50 is fifty.
Tens – A group or unit of ten ones. – There are two tens in the number 20.
Ones – Single units or digits in a number. – In the number 23, the digit 3 is in the ones place.
Greater – Larger in size or amount. – The number 8 is greater than the number 5.
Smaller – Lesser in size or amount. – The number 3 is smaller than the number 7.
Racing – Moving quickly to reach a goal or finish line. – The students are racing to solve the math problems first.
Cars – Vehicles that can be used to explain math problems or concepts. – We used toy cars to learn about addition and subtraction.
