Place Value and Three Forms
Math
Math's Place Value and Three Forms
Hi boys and girls, today we're looking at place value for our math lesson. Hi boys and girls, today we're looking at place value for our math lesson. Why is place value so important in math anyway? Let's consider the following scenarios. Oh dear, there are only 32 donuts in this box. I ordered 302 donuts. I do not have enough donuts for the people coming to the presentation this morning. When misses marks calls the bakery later, she finds out that the person who took the order wrote down the wrong number. When misses marks requested 302 donuts, the young man wrote down 32. Let's consider the following scenarios.
Oh, dear, there are only 32 donuts in this box. I ordered 302 donuts. I do not have enough donuts for the people coming to the presentation this morning. When misses marks calls the bakery later, she finds out that the person who took the order wrote down the wrong number. When misses marks requested 302 donuts, the young man wrote down 32. Mister Greenfield told me to add 505 and 176. Mister Greenfield said this is the wrong answer, but I checked my work again and again, and I can't figure out what I did wrong. Boys and girls can you see her mistake? That's right. Instead of writing down 505, she wrote down 55, that made her answer incorrect. Boys and girls can you see her mistake? That's right. Instead of writing down 505, she wrote down 55, that made her answer incorrect. Mister Greenfield told me to what is the symbol we use to represent the number one. It's called a digit. A digit is any symbol used to write whole add 505 and 176. Mister Greenfield said this is the wrong answer, but I checked my work again and again, and I can't figure out what I did wrong.
Each two has a different value in the number below. The place value tells the value of a digit in a number. Each two has a different value in the number below. The place value tells the value of a digit in a place value charts can help you identify the value of a digit. Let's make a place value chart and label the columns. Starting at the right, the first column is the ones. Next is tens, then hundreds, 10,000s. What is the value of the one in the number above? That's right. Place value charts can help you identify did you know that 1000s is the same as 1000? What is the value of the two in the number above? That's right, 200. It's really quite simple. Just keep the what is the value of the two in the number above? What is the value of the 7 in the number above? That's right, 7 tens has a value of 70. Again, it's quite simple. Just keep this. What is the value of the 7 in the number above? What is the value of the 5 in the number above? You got it. 5 ones has a value of 5. What is the value of the 5 in the number above? You got it. Did you notice the comma? When writing large numbers, a comma should always be placed between the thousands digit and the hundreds digit.
Did you notice the comma? When writing large numbers, a comma should always be placed between the thousands digit and the hundreds digit. Let's practice, write the number represented by these base ten blocks. If you don't have a paper and writing tool handy, you can just think about the number. Where you correct 564, let's practice. Now, complete these sentences. For the number 564, the 5 is in the hundreds place. It has a value of 500. The 6 is in the tens place. Its value is 60. The four is in the ones place. Now, completely sent. Let's do another. Write or think about the value of these base ten blocks. You've got it. When I count them up, let's do another. Write or think about the value of these base ten blocks. Now, complete these sentences for the number 3875. The 5 is in the ones place, its value is 5. The 8 is in the hundreds place, its value is 800. The three is in the thousands place, its value is 3000. The 7 is in the tens place, its value is 7. Now, write the value of these base ten blocks. One type of block is missing. Write the value of these I'm glad you noticed because that's extremely important. Let's return to our place value chart. First, label each column. Ones, tens, hundreds, thousands.
Which type of block was missing from the grouping. That's right, it was a hundreds. So places zero in the hundreds column, then fill in the other columns. Which type of block was missing from the grouping. That's right, it was a hundreds. So places zero and the hundreds column, then fill in the other columns. That simple, now, complete these sentences for the number 5039. The three is in the tens place. Its value is 30. The 5 is in the thousands place, its value is 5000. The zero is in the hundreds place. Its value is zero. Then 9 is in the ones place. Its value is. Let's do another. Write the value of these base ten blocks. You've got it 4100. Let's do it. Now, complete these sentences for the number 4102. The one is in the hundreds place, its value is 100. The two is in the ones place, its value is two. The zero is in the tens place, its value is zero. The four is in the thousands place, its value is 4000. You're really getting the hang of this now. Let's do another. Write the value of these base ten blocks. 2008, did you get the correct? You're really now complete these sentences for the number 2008. The two is in the thousands place, its value is 2000.
The 8 is in the ones place, its value is 8. Zeros are in the hundreds place and tens place. Their values are now complete. Let's do another. Write the value of these base ten blocks. That's right. 3010. Now complete these sentences for the number 3010. The one is in the tens place. Its value is ten. The three is in the thousands place, its value is 3000. Zeros are in the hundreds place and ones place. Their values are both now do you know which number represents these blocks? You're right. It's C 2064. Do you know which number represents these blocks? You're right. It's C 2064. Which is the correct number represented by these blocks. You've got it when I count it up. Which is the correct number represented by these blocks. You've got it when I count it up. I noticed that. Now that you're an expert on the value of digits, let's take a look at the way that numbers can be written. Numbers can be written in different ways. Standard form, word form, expanded form now that you're an expert on the value of digits, let's take a look at the way that numbers can be written. Numbers can be written in different ways. Standard form, word form, expanded form word form guidelines, use commas in the same place you use them in standard form. Use a hyphen when writing a number.
Word form guidelines we're going to rewrite these numbers in word form. If you don't have something to write on and a writing tool handy, pause the video and go get them. Number one, 1000 652. Check your work. Did you get this correct? Number two, 948. Did you write the word form correctly? Number three, 2750. Did you remember your comma between the thousands place and the hundreds place? Notice that 50 is one word, so you don't need a we're going to rewrite these numbers inward form. Rewrite these numbers in word form. Now rewrite these numbers in standard form. Remember standard four muses digits. Number one 9000 587. Check your work. Did you get number one correct? Number two, 4018. Make sure to check this one carefully. Did you remember the comma between the thousands and the hundredths place? What about that tricky zero? Did you remember to put a zero in the hundreds place? Number three 5000 731. How did you do on this one? Did you now rewrite rewrite these numbers in the standard form? Number one, 429. Be sure to check your answer. Number two, 9500. Look to be sure you see the correct answer on your screen.
Did you remember to put zeros in the correct places? Number three, 7104. This one's a little tricky. Take a look at the answer. Did you rewrite these numbers in standard form? Rewrite these numbers in standard form. You're doing great. Try these three on your own. Time to check your work. Did you get the correct answers? Rewrite these numbers in standard form. You're doing great. Try these three on your own. Time to check your work. Did you get the correct answers? Now we're going to talk about expanded form. Here are some expanded form guidelines. Starting at the left, write the full value of each digit and write a plus sign between each number written. Skip any digits that are zeros. The number 5239 and expanded form is 5000 plus 200 plus 30 plus 9. Remember, we skip any digits that are zeros. So in the number 3086, I noticed that there's a zero in the hundreds place, so I'm going to skip that. 3086 in expanded form is 3000 plus 80 plus 6. Remember, we skip any digits that are zeros. So in the number 3086, I noticed that there's a zero in the hundreds place, so I'm going to skip that. 3086 in expanded form is 3000 plus 80 plus 6.
Do you still have a paper and pencil handy? Awesome. Rewrite this number and expanded form. 8010. Check your work. Did you remember to skip those zeros? Number two, 2437. Make sure you wrote a number for each place value number three 8000 920. Did you get the correct answer? Do you still have? Let's try a few more. Rewrite this number in expanded form. Try it on your own and I'll show you the answers in just a second. Remember, if you need more time, you can pause the video and press play when you're ready. Let's try a few more. Rewrite this number and expand it. You are doing great. Now we're going to rewrite these numbers in standard form. Make sure to look at each number and think about the value. Where would that digit go on the place value chart? Number one, 6000 plus 300 plus 60 plus 8. Did you get the correct answer? Let's try number two. 4000 plus 800 plus ten plus one. Check your answer. Number three, this one is a little bit tricky. Do you remember that when you're doing expanding? You are doing great. Now we're going to rewrite these numbers in standard form. Make sure to look at each number and think about the value. You are a rockstar. You're doing such a great job.
Try these three on your own. Write the numbers in standard form. If you need more time, make sure to pause the video and when you're ready, press play. All right, it's time to check your work. You are a rockstar. You're doing such a great job. Try these three on your own. Write the numbers in standard form. Your almost done. Rewrite these numbers in standard form. If you need more time, pause the video. You can press play when you're ready to check your answers. You're almost done. Rewrite these numbers in standard form. If you need more time, pause the video. You can press play when you're ready to check your answers. Mister Murphy, body used motorcycle, according to the odometer, it has been driven 3601 miles. Circle the correct word form of this number. Think about your answer boys and girls is it a, B, C, or D? That's right. It's C 3000. This students at pinewood elementary school consumed 1022 cartons of milk last week. Circle the correct standard form of this number. Think about your answer, a, B, C, or D that's right. It's B, 1022 cartons. Great job boys and girls. You are done with your very first math lesson of third grade. The students at pinewood elementary school