Transcript Mathematics
Mathematics Chapter 2: Place Value & Number Sense 2.5 – 2.6 Place Value for 4, 5 & 6 digit numbers Created by: Mrs. Russell Objectives • To identify odd and even numbers and use a hundred chart to skip count. • To find the value of a digit by using its place-value. Materials Today, you will need expo markers, erasers, and white boards. We will be making numbers by counting base ten blocks, and reading place value charts! Review There are three ways to write numbers. 1. standard form 2. expanded form 3. word form 1 4,531 2 4,000 + 500 + 300 + 1 = 3 Four thousand, five hundred, thirty-one Lesson This week, we’ve been working on place value. We know at least four places already. Let’s learn two more! Hundred Thousands Ten Thousands Thousands Hundreds Tens Ones 4 3 2, 6 1 5 Practice Before we get started with base ten blocks, let’s work on reading the word form of these numbers. FOR EXAMPLE: Hundred Thousands Ten Thousands Thousands Hundreds Tens Ones 7, 2 4 6 Practice Before we get started with base ten blocks, let’s work on reading the word form of these numbers. FOR EXAMPLE: Hundred Thousands Ten Thousands Thousands Hundreds Tens Ones 3, 7 8 1 Practice Before we get started with base ten blocks, let’s work on reading the word form of these numbers. FOR EXAMPLE: Hundred Thousands Ten Thousands Thousands Hundreds Tens Ones 9 2, 1 5 3 Practice Before we get started with base ten blocks, let’s work on reading the word form of these numbers. FOR EXAMPLE: Hundred Thousands Ten Thousands Thousands Hundreds Tens Ones 1 6, 4 8 5 Practice Before we get started with base ten blocks, let’s work on reading the word form of these numbers. FOR EXAMPLE: Hundred Thousands Ten Thousands Thousands Hundreds Tens Ones 3 5 1, 2 6 0 Practice Before we get started with base ten blocks, let’s work on reading the word form of these numbers. FOR EXAMPLE: Hundred Thousands Ten Thousands Thousands Hundreds Tens Ones 4 2 0, 3 1 5 Standard Form • Standard form means that you write the number. • What number would you write for this picture? 2,656 Standard Form • Standard form means that you write the number. • What number would you write for this picture? 1,474 Expanded Form Sometimes a number is so big that we need a place value chart! Can you write this number in expanded form? Hundred Thousands 50,000 + 3,000 + 300 + 10 + 5 Ten Thousands Thousands Hundreds Tens Ones 5 3, 3 1 5 Expanded Form Sometimes a number is so big that we need a place value chart! Can you write this number in expanded form? Hundred Thousands 40,000 + 1,000 + Ten Thousands Thousands Hundreds 40 + 7 Tens Ones 4 1, 0 4 7 Expanded Form Sometimes a number is so big that we need a place value chart! Can you write this number in expanded form? 800,000 40,000 + 1,000 + 700 + Hundred Thousands Ten Thousands Thousands Hundreds 30 + Tens 2 Ones 8 4 1, 7 3 2 Good work! Now let’s work on this in the book! Turn to PW 12.