Lesson 1 Place Value and Value of Whole Numbers

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1. Place Value and Value of Whole Numbers Prepared by: Mr. Alphie Zarriz

2. THIGS YOU NEED TO KNOW! What is the difference between DIGIT and NUMBER? DIGIT It is a single numerical symbol from 0 to 9. 1 2 3 4 5 6 7 8 9

3. NUMBER It is an amount of something. It can be written with one or more digits. 10 315 1 239

4. What is Place Value? Place value is the position of a digits in a given number. Hundred thousands Tens thousands Thousands Hundreds Tens Ones 4 8 3 9

5. Let us determine the place value of the given number. 7 4 9 1 6 ones tens hundreds thousands ten thousands

6. What is Value? value is the amount of a digit in a given number. The value of a digit can be determined by multiplying the digit by its place value. Hundred thousands 100 000 Ten thousands 10 000 Thousands 1 000 Hundreds 100 Tens 10 Ones 1 Place Value 2 2 9 8 2 Value 20 000 2 000 900 80 2 22 982 Step 1: Determine the place value of each digits. Step 2: Multiply each digit to its place value. 2 x 1 8 x 10 9 x 100 2 x 1 000 2 x 10 000

7. Sub topic: Reading and Writing Numbers up to 100 000 Numbers in Symbols Numbers in Words 10 717 ten thousand, seven hundred, seventeen 30 926 thirty thousand, nine hundred, twenty-six 44 268 Forty-four thousand, two hundred, sixty-eight 67 091 Sixty-seven thousand, ninety-one 93 504 Ninety-three thousand, five hundred, four

8. Remember When reading and writing numbers, start from left to right. Use the concept of place value when reading and writing numbers. Commas are used to separate the periods.