Place value Sub-Topics: 1. 3 – Digit Numbers 2. Adding Bigger Numbers Name K. Yukthi Class 3 rd C Class Name Kuruvadweep School Dream World School
INTRODUCTION Hi friends, today let me explain about the topics Place Value with Comparing Numbers and Ordering Numbers. Place value helps us understand the value of each digit in a number . Place Value
BASICS Addition : To Put Together or Combine or Forward Count The Sign of Addition is “ + ” It is Read as Plus Addend + Addend = Sum The Result of the Addition is called as Sum Place Value
Place Value Theory Face value of a digit in a number is the digit itself. Place means a particular position of a digit in a numeral. Place value = Face value x Place of the digit.
01 Comparing Numbers The process of identifying smaller numbers or greater numbers in the given two numbers is known as comparison. We compare the numbers using these symbols. Greater than Less than Equal to Place Value
Example-1 : DIFFERENT NUMBER OF DIGITS The number with more digits will always be the greater number. TH H T O 2 7 4 2 2 1 6 TH H T O 1 9 8 2 6 < 274 2216 > 206 1980 Place Value
Example-2 : SAME NUMBER OF DIGITS When we are comparing same number of digits, we should compare the thousands place first. TH H T O 4 2 2 2 2 2 TH H T O 7 2 3 7 6 8 < 7230 7680 > 2220 4220 Place Value
02 ORDERING Numbers Ascending Order The arrangement of numbers from to the smallest number to the largest number. Place Value 1245,215,481,27 395,6675,950,20 27 215 481 1245 20 395 950 6675
Descending Order The arrangement of numbers from largest number to the smallest number. Place Value 40, 4962,180, 2560 780, 20,165, 999 4962 2560 180 40 999 780 165 20
Application We use numbers in our day to day life. Place value helps us count and use money . Place value helps us tell time.
conclusion Today we learnt how to compare different numbers and how to arrange numbers in ascending and descending order. Reference: New Enjoying Mathematics Class 3 by Ashalatha Badami