CHAPTER 1
PLACE VALUE &
EXPANDED FORM
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
Number up
Chapter 1:
to 100,000
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
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
thousand
11. Comparing
=
12. Ordering
= the way in which things are arranged
13. Ascending order
to describe something as similar
=
arrange from smallest to largest
14. Descending order =
arrange from largest to smallest
15. Successor
=
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 =
21. Wrap up
=
the number that comes just after
left over from subtraction
conclusion
WHAT DIGIT IS IN THE HUNDRED’S PLACE?
7 4 3, 9 8 2
9
WHAT IS THE VALUE OF THE UNDERLINED DIGIT?
7 4 3, 9 8 2
Ten thousand
WHAT IS THE VALUE OF THE UNDERLINED DIGIT?
7 4 3,9 8 2
Thousand
WHAT IS THE VALUE OF THE UNDERLINED DIGIT?
74 3,9 8 2
Hundred thousand
WHAT IS THE VALUE OF THE UNDERLINED DIGIT?
7 4 3, 9 8 2
Hundred
WHAT IS THE VALUE OF THE UNDERLINED DIGIT?
7 4 3, 9 8 2
Ten
WHAT IS THE VALUE OF THE UNDERLINED DIGIT?
7 4 3, 9 8 2
One
Place Value
Page 7
A. Write in words the place value ……….
1. 43,102 = Hundreds
5. 76,543
=
Tens
2. 49,325 = Hundreds
6. 256,729
=
Tens
3. 41,978 = Thousands
7. 763,487
=
Ones
4. 89,032 = Ten thousands
8. 878,939
=
Thousands
B. Answer the following questions……….
1. Hundreds ,
2. Thousands ,
3. thousands , 4. Hundred Thousands
C. Recognize the place value of numbers ……….
Page 7
1. What are the place value of each digit in 37,985
a) The digit 5 is in the ones
place.
b) “_____” 8 “_____” tens
“_____”
c) “_____” 9 “_____” hundreds “_____”
d) “_____” 7 “_____” thousands “_____”
e) “_____” 3 “_____” ten thousands“_____”
2. What is the value of each digits in 87,563……….
a) Digit “ 3 ” = 3 ones ,
b) ) Digit “ 6 ” = 6 tens
c) Digit “ 5 ” = 5 hundreds d) Digit “ 7 ” = 7 thousands
e) Digit “ 8 ” = 8 ten thousands
3. What do the digits in 45,289 stand for ?
a) Digit “ 9 ” stands for 9 ones ,
Page 7 - 8
b) ) Digit “ 8 ” stands for 8 tens
c) Digit “ 2 ” stands for 2 hundreds d) Digit “ 5 ” stands for 5 thousands
e) Digit “ 4 ” stands for 4 ten thousands
4. Fill in each blanks with the correct answer.
a) In 34,902 the digit 9 is in the hundreds place.
b) In 78,234 the digit 7 is in the ten hundreds place.
c) The 56,291 , the digit 6 is in the thousands place.
d) The 85,920 , the digit 8 is in the ten thousands place.
5. In 87,213
a) The place value of the digit “ 2 ” is hundreds place .
b) The value of the digit “ 2 ” is 2 hundreds.
6. In 25,734
a) The place value of the digit “ 5 ” is thousands place .
b) The value of the digit “ 5 ” is 5 thousands .
7. In 73,906
a) The place value of the digit “ 6 ” is ones place .
b) The value of the digit “ 6 ” is 6 ones .
Page 8
Page 8
8. In 56,923
a) The place value of the digit “ 5 ” is
ten thousands place .
b) The value of the digit “ 5 ” is 5 ten thousands .
9. In 93,021
a) The place value of the digit “ 9 ” is
ten thousands place .
b) The value of the digit “ 9 ” is 9 ten thousands .
Expanded form
Ex.1.4
Page 9
A. Fill in the blanks.
1. 7 hundred thousands + 3 ten thousands + 4 thousands + 9 hundreds +
2 tens + 5 ones.
2. 3 x 100,000 + 5 x 10,000 + 6 x 1,000 + 3 x100 + 2 x 10 + 8
3. 400,000 + 10,000
+
8,000 + 300 + 40 + 6
B. Write in the expanded form.
Page 9-10
1. 300,000 + 50,000 + 3,000 + 400 + 30 + 9
2. 800,000 + 50,000 + 6,000 + 400
+ 70 + 2
3. 300,000 + 00,000 + 5,000 + 600
+ 00 + 7
4. 80,000
+ 1
+ 5,000
+ 000
+ 00
C. Match the following.
1) c ,
2) d , 3) f , 4) e , 5) a , 6) b
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