PLACE VALUE &PLACE VALUE &EXPANDED FORMEXPANDED FORM

CHAPTER 1CHAPTER 1

BY M.Veerasakdi BY M.Veerasakdi LeotsophaLeotsopha

WARM UP !WARM UP !Guess Your number !Guess Your number !

Guess My number ! Guess My number !

OBJECTIVESOBJECTIVES1. Be able to read numbers to 1. Be able to read numbers to

hundred thousandhundred thousand

2. Be able to identify the place 2. Be able to identify the place value of each digit in numbers value of each digit in numbers up to one hundred thousandup to one hundred thousand

3. Know how to write a number 3. Know how to write a number in word formin word form

VOCABULARYVOCABULARY Chapter 1: Number up 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 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

 

 

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

WHAT DIGIT IS IN THE HUNDREDWHAT DIGIT IS IN THE HUNDRED’’S PLACE? S PLACE?

7 4 3, 9 8 27 4 3, 9 8 2

99

WHAT IS THE VALUE OF THE UNDERLINED WHAT IS THE VALUE OF THE UNDERLINED DIGIT? DIGIT?

7 7 44 3, 9 8 2 3, 9 8 2Ten Ten thousandthousand

WHAT IS THE VALUE OF THE UNDERLINED WHAT IS THE VALUE OF THE UNDERLINED DIGIT? DIGIT?

7 4 7 4 33,9 8 2,9 8 2ThousandThousand

WHAT IS THE VALUE OF THE UNDERLINED WHAT IS THE VALUE OF THE UNDERLINED DIGIT? DIGIT?

774 3,9 8 24 3,9 8 2Hundred thousandHundred thousand

WHAT IS THE VALUE OF THE UNDERLINED WHAT IS THE VALUE OF THE UNDERLINED DIGIT? DIGIT?

7 4 3, 7 4 3, 99 8 2 8 2HundredHundred

WHAT IS THE VALUE OF THE UNDERLINED WHAT IS THE VALUE OF THE UNDERLINED DIGIT? DIGIT?

7 4 3, 9 7 4 3, 9 88 2 2TenTen

WHAT IS THE VALUE OF THE UNDERLINED WHAT IS THE VALUE OF THE UNDERLINED DIGIT? DIGIT?

7 4 3, 9 8 7 4 3, 9 8 22OneOne

Place ValuePlace ValuePlace ValuePlace Value

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

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C. Recognize the place value of numbers ……….

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

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3. What do the digits in 45,289 stand for ?

a) Digit “ 9 ” stands for 9 ones , 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.

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a) The place value of the digit “ 2 ” is hundreds place .

b) The value of the digit “ 2 ” is 2 hundreds.

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 .

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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 .

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Expanded formExpanded formExpanded formExpanded form Ex.1.4

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

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B. Write in the expanded form.

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 + 5,000 + 000 + 00 + 1

C. Match the following.

1) c , 2) d , 3) f , 4) e , 5) a , 6) b

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Math Racing Games

Worksheet 1Worksheet 1

Worksheet

Worksheet

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