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

2. Warm up !
Guess Your number ! Guess My number !

3. 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

4. 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

5. 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

6. 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

7. 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

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

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

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

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

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

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

14. 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

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

16. 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, = Three hundred fifty six thousand four hundred eighty nine

17. 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

18. 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 >

19. Worksheet 1
Worksheet 2
Math Racing Games