ClassX Video Lessons Grade Grade 2 Place Value for Kids: Ones and Tens – Place Value Blocks | Math for 1st Grade
Hello, friends! Today, we’re going to explore one of my favorite numbers: the number 10. Ten is a super cool number, and it’s fun to find patterns and shapes that use groups of ten. Let’s start by counting some blocks!
Look at these red blocks. There are 10 of them in a line. Let’s count them together: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10. Now, let’s see if there are 10 orange blocks too. They are in two groups with five blocks each, just like the fingers on your hands. One hand has five fingers, and two hands make ten. Let’s count: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10.
Now, look at this pyramid of green blocks. Do you think there are ten? Let’s count and see: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10. Yes, there are ten! Which group was easiest for you to count?
Let’s find groups of 10 animals at the zoo. Look at all those monkeys! If we move them around into two equal rows, we can see there are five in each row. Five and five make ten!
Now, let’s visit the penguins. Can you find a group of ten penguins? Look closely! There it is, a group of ten penguins!
Sometimes, we see pyramids of animals. Let’s count to see if they have ten: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10. Yes, this group has ten!
When we look at a number like 35, each digit has its own value. Let’s see what each number means!
The number on the right is in the ones place. In 35, the 5 is in the ones place, so it means just five. The number next to it is in the tens place. In 35, the 3 is in the tens place. We count by tens three times: ten, twenty, thirty. So, the 3 means thirty.
Here’s a trick: just add a zero to the number in the tens place to find its value. In 35, the 3 becomes 30.
Let’s try another number: 26. The 6 is in the ones place, so it means six. The 2 is in the tens place, so it means twenty. You can count by tens: 10, 20.
Here’s a challenge: What is the value of the digits in 52? The 2 is in the ones place, so it means two. The 5 is in the tens place, so count by tens five times: ten, twenty, thirty, forty, fifty. The 5 means fifty!
Let’s use pearls to practice counting by tens and ones. Pearls on a string are tens, and single pearls are ones.
Look at the pearls. We have one string of ten, so we count: 10. Then we count the single pearls: 11, 12, 13, 14. The number is 14.
Let’s try another one. We have two strings of ten: 10, 20. Then count the single pearls: 21, 22, 23, 24, 25, 26, 27. The number is 27.
We can also use a T-chart. Put tens on the left and ones on the right. For 14, we have one ten and four ones. For 27, we have two tens and seven ones.
Let’s find the number that comes after the one shown on the plane. If we have eight tens and nine ones, that’s 89. The next number is 90.
For five tens and six ones, that’s 56. The next number is 57. For seven tens and two ones, that’s 72. The next number is 73.
For four tens and seven ones, that’s 47. The next number is 48. For six tens and four ones, that’s 64. The next number is 65.
Great job! Keep practicing, and see you next time!
Block Building Challenge: Gather some building blocks or small objects at home. Try to create different shapes or structures using exactly 10 blocks. Can you make a line, a pyramid, or a square? Count each time to make sure you have 10. Share your creations with a friend or family member and explain how you counted to 10.
Animal Grouping Game: Pretend you are at the zoo and use toy animals or draw pictures of animals. Group them into sets of 10. Can you make two rows of 5 animals each? Try making a pyramid with 10 animals. How many different ways can you arrange them into groups of 10?
Place Value Treasure Hunt: Go on a treasure hunt around your house to find numbers. Look at clocks, books, or even food packages. Pick a number and write it down. Use a T-chart to break it into tens and ones. For example, if you find the number 42, write down 4 tens and 2 ones. Share your findings with someone and explain what each digit means.
Sure! Here’s a sanitized version of the transcript, removing any unnecessary elements while keeping the educational content intact:
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Hello boys and girls! Today we’re going to work with one of my favorite numbers: the number 10. Ten is a cool number, and it’s fun to find patterns and shapes that use groups of ten. Each of these blocks is in a group of ten. Even though the groups have different shapes, we can count and see that they each have 10 blocks: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10.
There are 10 red blocks in a line. Do you think there are 10 orange blocks too? Let’s count them: 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10. The orange blocks are in two groups with five blocks each, just like the fingers on your hands. One hand has five fingers, and two hands make ten.
Look at this group. Do you think there are ten green blocks in this pyramid? Let’s count and see: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10. Yes, this group has ten too! Sometimes you can find 10 by seeing one of these patterns. Which group was easiest for you to count?
Now it’s time to find groups of 10 animals in the zoo. Let’s use these groups to help us count and find 10 with other things too. Whoa, look at all those monkeys! I wonder if there are ten. If we move them around and try to put them into two equal rows, we can see that there are five in each row. Yes, five and five make ten!
Our monkey friend wants us to go see the penguins. It’s your turn! Let’s go to the penguin pool and see if you can find groups of ten. Do you see which one has ten? It’s this one! These groups show ten penguins.
Now, that’s a tough one. I see two pyramids, but do they both show ten? Nope! We always count to check: 1, 2, 3, 4, 5, 6, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10. It looks like this is the group that shows ten. Thanks for watching, boys and girls, and thanks for helping me count. Look for patterns and find groups of ten. See you next time!
When we look at a number like 35, each digit in this number has its own value. There is a number in the ones place and a number in the tens place. Let’s have a closer look at each number to see its true value. The ones place is furthest to the right. The number in the ones place always equals itself. In our number 35, the five is in the ones place, and its value is just that: five.
The next place over is the tens place. The number in the tens place is always 10 times the value of the number shown. In our number 35, the three is in the tens place. We can find its value by counting by tens three times: ten, twenty, thirty. The value of the three is thirty.
Another trick you can remember is to just put a zero at the end of the number. The three in thirty-five is represented by the three tens blocks, which equals thirty. In the number 26, the 6 is in the ones place, and the 2 is in the tens place. The 6 is worth just 6, which is represented by 6 cubes. The 2 is worth 20 because it is in the tens place and is represented by the two long tens blocks.
You can count by tens using the base 10 blocks or just count in your head: 10, 20. I’ll leave you with a challenge: Can you tell the value of the digits in the number 52? What is the value of the five? What is the value of the two? I’ll give you some time to think, but if you need more time, you can pause the video and answer when you’re ready.
Okay, here’s the answer. The two is in the ones place, so it’s just worth two. The five is in the tens place, so we’ll have to count by tens five times: ten, twenty, thirty, forty, fifty. The value of the 5 is 50. Remember to look at the place the digit is in before you decide the value of that number. Thanks for watching, boys and girls. See you next time!
Now we have practice with place value. The directions say to look at the models below. Pearls on the string represent tens, and the single pearls represent ones. Circle the number each model shows.
One way to do this is to count by tens and ones. We can count how many pearls on a string there are. This is going to be tens, and you’re going to count by 10. There’s only one string of tens, so we go 10, and then we count up: 11, 12, 13, 14. The number is 14.
Another way to do it is to make a T-chart. We’ll put tens on the left side and ones on the right side. Let’s count how many strings we have of ten. We have just one, so we put a one over here. How many individual pearls do we have? We have one, two, three, four. So we can see we have one ten and four ones, which is also the number 14.
Now let’s try the next one. We’ll count by tens: 10, 20, and then from 20, we count up: 21, 22, 23, 24, 25, 26, 27. The number is 27.
The other way is to use our T-chart. We have two strings of ten, and for our ones, we have one, two, three, four, five, six, seven. That’s also the number 27.
This time, let’s just pick one of the ways. We’ll count by tens: 10, 20, 30, then count up: 31, 32. The number is 32.
For the last one, let’s do it with our T-chart. How many tens do we have? We have one, two, three, four strings of ten. For our ones, we have one, two, three, four, five, six. That is the number 46.
Great job today with your place value!
Now we have a worksheet named “Transportation Math Place Value.” Which number comes after the number shown on the plane? Circle the correct answer.
The first number is eight tens and nine ones. That is the number 89. The question says which number comes after 89. Normally, we’re looking at the ones place, and when we come to nine, we go to zero, and the tens place moves up one. So the next number is 90.
The next one is five tens and six ones, which is the number 56. What comes after six? The answer is seven, so our answer is 57.
The next one is seven tens and two ones. What comes after two? The answer is three, so we have 73.
The next one is four tens and seven ones. What comes after seven? The answer is eight, so we have 48.
The last one is six tens and four ones. What comes after four? The answer is five, so we have 64.
Great job! Bye!
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