Reading and Writing multi-digit numbers using Lesson 4: Reading and Writing multi-digit numbers using

Todays Lesson This lesson will focus on how you can read and write multi-digit numbers using numerals, words, and expanded form. Please make sure you have a whiteboard, a marker, your math book, and a pencil on your desk.

Let’s try this On our whiteboards… Write the number one thousand, seven hundred eight on your whiteboard. Write it using the place value chart that is on the board.

Let’s try this On our whiteboards… What is the value of the 1?

Let’s try this On our whiteboards… What is the value of the 1? What about the 7?

Let’s try this On our whiteboards… What is the value of the 1? What about the 7? And finally what about the 8?

Let’s try this On our whiteboards… What is the value of 1,000, 700, and 8?

Let’s try this On our whiteboards… What is the value of 1,000, 700, and 8? Write it as a number sentence…

Let’s try this On our whiteboards… What is the value of 1,000, 700, and 8? Write it as a number sentence… 1,000 + 700 + 8 = 1,708

Let’s try another one… Write the number twenty seven thousand, eighty five on your place value chart like before. After doing this write the value of each digit on the bottom of your place value chart.

Let’s try another one… Write the number twenty seven thousand, eighty five on your place value chart like before. After doing this write the value of each digit on the bottom of your place value chart. Why is there no term representing the hundreds?

Let’s try another one… With a partner, write down a number sentence to represent this number.

Let’s try another one… With a partner, write down a number sentence to represent this number. Did you get: 20,000 + 7,000 + 80 + 5 = 27,085

Let’s try another one… Now try writing 27,085 in word form.

Let’s try another one… Now try writing 27,085 in word form. Should be twenty-seven thousand, eighty-five.

Let’s try another one… Now try writing 27,085 in word form. Should be twenty-seven thousand, eighty-five. Why is there a comma after thousand?

Here’s another one Read the following number: two hundred seventy thousand, eight hundred fifty.

Here’s another one Read the following number: two hundred seventy thousand, eight hundred fifty. How can I use word form to write this number in standard form?

Your job now is to… Write two hundred seventy thousand, eight hundred fifty in standard form and expanded form. You may use your place value charts to assist you.

Did you get 270,850

Did you get? 270,850 and 200,000 + 70,000 + 800 + 50 = 270,850

Last Problem Read the following expression: 700,000 + 8,000 + 500 + 70 + 3

Last Problem Read the following expression: 700,000 + 8,000 + 500 + 70 + 3 Try writing this number in standard form.

Did you get? 78,573

What’s wrong with my answer? Did you get? 78,573 What’s wrong with my answer?

What’s wrong with my answer? It should be 708,573 Did you get? 78,573 What’s wrong with my answer? It should be 708,573

Last Thing Try writing 708,573 in word form.

Last Thing Try writing 708,573 in word form. Seven hundred eight thousand, five hundred seventy-three.

Practice Practice on your own with numbers 1, 2, 3 and 4 on pages 23 and 24. We will check in 10 minutes.