BY M.Veerasakdi Leotsopha CHAPTER 1 Number up to 100,000 BY M.Veerasakdi Leotsopha

Warm up ! Guess Your number ! Guess My number !

Objectives 1. Be able to read numbers to hundred thousand 2. Be able to identify the place value of each digit in numbers up to one hundred thousand 3. Know how to write a number in word form

Vocabulary 1. Recognise = to identify / prove 2. Place value = the position of a single digit in a whole number 3. Ten Thousands = place value of digit ten thousand 4. Thousands = place value of digit thousand 5. Hundreds = place value of digit hundred 6. Tens = place value of digit ten 7. Ones = place value of digit one 8. Numerals = symbols or mark used to represent a number   9. Number name = express numbers in words 10. Expanded form = the sum of each digit Vocabulary

11. Comparing = to describe something as similar   12. Ordering = the way in which things are arranged 13. Ascending order = arrange from smallest to largest 14. Descending order = arrange from largest to smallest 15. Successor = the number that comes just after 16. Predecessor = the number that comes just before 17. Rounding off = to estimate 18. Estimation = approximation 19. Sum of = to combine two things or more 20. Difference of = left over from subtraction 21. Wrap up = conclusion  

Ex.1.1 Read the numeral shown ….. Page 3 TTh Th H T O TTh Th H T O TTh Th H T O Thirty thousand five hundred forty seven Forty thousand two hundred seventy Eleven thousand one hundred forty seven TTh Th H T O TTh Th H T O TTh Th H T O Sixty three thousand twenty five Twenty four thousand five hundred sixty seven Thirty four thousand two hundred thirteen

B. Represent the following ….. Page 3 1. 36,015 3. 56,543 TTh Th H T O TTh Th H T O Fifty six thousand five hundred forty three Thirty six thousand fifteen

One hundred thirty-three thousand, four hundred seventy-two Read this number 133,472 One hundred thirty-three thousand, four hundred seventy-two

Six hundred forty-three thousand, five hundred eighty-two Read this number 643,582 Six hundred forty-three thousand, five hundred eighty-two

nine hundred thirty-one Read this number 54,931 Fifty-four thousand, nine hundred thirty-one

Five hundred thirty thousand, Read this number 530,801 Five hundred thirty thousand, eight hundred one

two hundred sixty-eight Read this number 4,268 Four thousand, two hundred sixty-eight

Three hundred five thousand, Read this number 305,108 Three hundred five thousand, one hundred eight

Page 4 C. Write the numeral for the number name. 1. Forty-five thousand six hundred nineteen = 45,619 2. Ninety-nine thousand five hundred sixty = 99,560 3. Thirty-five thousand nine hundred ninety-nine = 35,999 4. Fourteen thousand nine = 14,009 5. Twenty-eight thousand one hundred fourteen = 28,114 6. Sixty-four thousand six hundred forty-eight = 64,648

No. E & F < Skip > Read the numeral and write number names Page 4 Read the numeral and write number names 1. 46,349 = Forty six thousand three hundred forty nine 2. 39,600 = Thirty nine thousand six hundred 3. 78,919 = Seventy eight thousand nine hundred nineteen 4. 84,743 = Eighty four thousand seven hundred forty three No. E & F < Skip >

Ex.1.2 Page 5 A. Write the number names……. 150,905 = One hundred fifty thousand nine hundred five 782,990 = Seven hundred eighty two thousand nine hundred ninety 999,999 = Nine hundred ninety nine thousand nine hundred ninety nine 439,646 = Four hundred thirty nine thousand six hundred forty six 791,875 = Seven hundred ninety one thousand eight hundred seventy five 356,489 = Three hundred fifty six thousand four hundred eighty nine

B. To represent a 6 digit …………. Page 5 B. To represent a 6 digit …………. 1) 2) H T HTh TTh Th O HTh TTh Th H T O One hundred twenty three thousand four hundred twenty five Three hundred twenty thousand three hundred twenty two

C. Read the 6- digit numeral and ….. Page 5 H T O HTh TTh Th HTh TTh Th H T O 405,215 524,152 No. D & E < Skip >

Worksheet 1 Worksheet 2 Math Racing Games