Review of Go Math 1.1 and 1.2 Copyright © 2013 Kelly Mott
Let’s practice reading big numbers. Copyright © 2013 Kelly Mott
Practice Reading Big Numbers We read numbers left to right just like in reading. Read the thousands period first. 2. Then read the ones period. Let’s Practice: 327,812 Copyright © 2013 Kelly Mott
Practice Reading Big Numbers #3 49,133 Copyright © 2013 Kelly Mott
Practice Reading Big Numbers #5 565,413 Copyright © 2013 Kelly Mott
Practice Reading Big Numbers #4 73,112 Copyright © 2013 Kelly Mott
Practice Reading Big Numbers #6 215,103 Copyright © 2013 Kelly Mott
Practice Reading Big Numbers #8 700,104 Copyright © 2013 Kelly Mott
Practice Reading Big Numbers #9 214,092 Copyright © 2013 Kelly Mott
Practice Reading Big Numbers #7 110,011 Copyright © 2013 Kelly Mott
How did you do? Copyright © 2013 Kelly Mott
Now let’s practice finding the place of a digit. Copyright © 2013 Kelly Mott
Identify Place Value to the 100 Thousands Directions: A question will come up on the screen. Everyone will write their answer down on a dry erase board. The teachers will walk around and check your work. Then the correct answer will be displayed on the SMARTboard. Copyright © 2013 Kelly Mott
Question #1 What number is in the tens place? 443,691 Answer = 9 Hundred Thousands Ten Thousands Thousands Hundreds Tens Ones Copyright © 2013 Kelly Mott
Question #2 What number is in the thousands place? Answer = 7 217,358 Hundred Thousands Ten Thousands Thousands Hundreds Tens Ones Copyright © 2013 Kelly Mott
Question #3 What number is in the ones place? 691,345 Answer = 5 Hundred Thousands Ten Thousands Thousands Hundreds Tens Ones Copyright © 2013 Kelly Mott
Question #4 What number is in the hundreds place? Answer = 8 661,822 Hundred Thousands Ten Thousands Thousands Hundreds Tens Ones Copyright © 2013 Kelly Mott
Question #5 What number is in the hundred thousands place? 637,288 Answer = 6 Hundred Thousands Ten Thousands Thousands Hundreds Tens Ones Copyright © 2013 Kelly Mott
Question #6 What number is in the ten thousands place? 340,022 Answer =4 Hundred Thousands Ten Thousands Thousands Hundreds Tens Ones Copyright © 2013 Kelly Mott
How did you do? Copyright © 2013 Kelly Mott
Now let’s look at finding the value of a digit. Copyright © 2013 Kelly Mott
Steps to Find the Value of a Number Circle the number Write the digit down Underline all of the digits to the right of the number Then count the # of places after the digit Add that same # of zeros Example: 5, 6 7 8 What is the value of the 7? _____________________ Copyright © 2013 Kelly Mott
Identify the Value of a Number Directions: A question will come up on the screen. Everyone will write their answer down on a dry erase board. The teachers will walk around and check your work. Then the correct answer will be displayed on the SMARTboard. Copyright © 2013 Kelly Mott
Question #1 What is the value of the 6 in the number below? 56,702 Answer = 6,000 Copyright © 2013 Kelly Mott
Question #2 What is the value of the 8 in the number below? 29,582 Answer = 80 Copyright © 2013 Kelly Mott
Question #3 What is the value of the 4 in the number below? 943, 781 Answer = 40,000 Copyright © 2013 Kelly Mott
Question #4 What is the value of the 9 in the number below? 912, 683 Answer = 900,000 Copyright © 2013 Kelly Mott
Question #5 What is the value of the 3 in the number below? 123, 456 Answer = 3,000 Copyright © 2013 Kelly Mott
FOCUS QUESTION: What are the 3 ways we can write a number? Copyright © 2013 Kelly Mott
We can write numbers 3 different ways: Thousands Hundreds Tens Ones 3 2 1 9 Standard Form: written in numbers 3,219 Word Form: written in words Three thousand, two hundred nineteen Expanded Form: write the value of each digit 3,000 + 200 + 10 + 9 Copyright © 2013 Kelly Mott
Standard Form Copyright © 2013 Kelly Mott
Writing Numbers in Standard Form Directions: A question will come up on the screen. Everyone will write their answer down on a dry erase board. The teachers will walk around and check your work. Then the correct answer will be displayed on the SMARTboard. Copyright © 2013 Kelly Mott
Question #1 Three thousand, sixty-two Answer = 3,062 Copyright © 2013 Kelly Mott
Question #2 Twelve thousand, three hundred seventy-five Answer = 12,375 Copyright © 2013 Kelly Mott
Question #3 Eighteen thousand, five hundred Answer = 18,500 Copyright © 2013 Kelly Mott
Question #4 Two hundred fifty two thousand, six hundred ninety-nine Answer = 252,699 Copyright © 2013 Kelly Mott
Question #5 Four hundred thousand, one hundred thirty-two Answer = 400,132 Copyright © 2013 Kelly Mott
Question #6 Seven hundred twenty thousand, four hundred thirty five Answer = 720, 435 Copyright © 2013 Kelly Mott
Word Form Copyright © 2013 Kelly Mott
Practice Word Form: 1. 123,456 ________________________________________ 2. 100,022 Copyright © 2013 Kelly Mott
Expanded Form Copyright © 2013 Kelly Mott
Steps to Write the Expanded Form Start left to right Write the value of the first digit, add a plus sign, then write the value of the next digit, add a plus sign Keep following this method until you’ve written the value of each number Example: 5, 6 7 8 _____________________________________________ Copyright © 2013 Kelly Mott
Practice Expanded Form 1: 32,750 ______________________________________________ 2. 95,026 3. 313,709 4. 267,008 Copyright © 2013 Kelly Mott
Expanded Form to Standard Form Copyright © 2013 Kelly Mott
Practice Expanded to Standard 1: 500,000 + 40,000 + 2,000 + 900 + 30 + 7 ___ ___ ___ , ___ ___ ___ 2. 100,000 + 20,000 + 6,000 + 100 + 90 + 3 3. 200,000 + 9,000 + 70 + 3 Copyright © 2013 Kelly Mott
PRACTICE: Let’s practice standard form. Copyright © 2013 Kelly Mott
Expanded and Standard Form Directions: A question will come up on the screen. Everyone will write their answer down on a dry erase board. The teachers will walk around and check your work. Then the correct answer will be displayed on the SMARTboard. Copyright © 2013 Kelly Mott
5,972 Question #1 What is the expanded form of the number below? Answer = 5,000 + 900 + 70 + 2 Copyright © 2013 Kelly Mott
37,298 Question #2 What is the expanded form of the number below? Answer = 30,000 + 7,000 + 200 + 90 + 8 Copyright © 2013 Kelly Mott
52,790 Question #3 What is the expanded form of the number below? Answer = 50,000 + 2,000 + 700 + 90 Copyright © 2013 Kelly Mott
129,406 Question #4 What is the expanded form of the number below? Answer = 100,000 + 20,000 + 9,000 + 400 + 6 Copyright © 2013 Kelly Mott
108,065 Question #5 What is the expanded form of the number below? Answer = 100,000 + 8,000 + 60 + 5 Copyright © 2013 Kelly Mott
Question #6 What is the standard form of the number below? 8,000 + 100 + 20 + 5 = ___ ___ ___ ___ Answer = 8,125 Copyright © 2013 Kelly Mott
Question #7 What is the standard form of the number below? 3,000 + 700 + 80 + 9 = ___ ___ ___ ___ Answer = 3,789 Copyright © 2013 Kelly Mott
Question #8 What is the standard form of the number below? 20,000 + 4,000 +300 + 80 = __ __ __ __ __ Answer = 24,380 Copyright © 2013 Kelly Mott
Question #8 What is the standard form of the number below? 10,000 + 4,000 + 700 + 6 = __ __ __ __ __ Answer = 14,706 Copyright © 2013 Kelly Mott
Question #9 What is the standard form of the number below? 500,000 + 30,000 + 60 + 6 = __ __ __ __ __ __ Answer = 530,066 Copyright © 2013 Kelly Mott
Question #10 What is the standard form of the number below? 400,000 +80,000 + 700 = __ __ __ __ __ __ Answer = 480,700 Copyright © 2013 Kelly Mott
How did you do? Copyright © 2013 Kelly Mott
Copyright © 2013 Kelly Mott