# Place Value and Face Value

The place value of a digit in a number is the value it holds to be at the place in the number. We know about the place value and face value of a digit and we will learn about it in details.

We know that each digit in a number has a place. The place that a digit occupies in a number tells us about its place value.

Let us take a 3-digit number 915

 915 = 9 hundreds 1 ten and 5 ones. We note that the digit 9 in the number 915 is at hundreds place.

So, the place value of digit 9 is 9 hundred or 900.

The place value of digit 1 is 1 ten or 10.

The place value of digit 5 is 5 ones or 5.

Place, Place Value and Face Value:

A number is formed by grouping the digits together.

● Each digit has a fixed position called its place.

● Each digit has a value depending on its place called the place value of the digit.

● The face value of a digit for any place in the given number is the value of the digit itself

● Place value of a digit = (face value of the digit) × (value of the place)

We know that each digit in a number has a place value. The place a digit occupies in a number tells us its place value. So, the product of the digit and the value of the place it occupies gives us the place value. Let us arrange the digits of the number 5, 32,161 in the following place value chart.

The face value of a digit in a number is the digit itself.

Properties of Place Value:

1. The place value of every one-digit number is the same as and equal to its face value.

(i) Place value and face value of 1, 2, 3, 4, 5, 6, 7, 8 and 9 are 1, 2, 3, 4, 5, 6, 7, 8 and 9 respectively.

(ii) The place value of zero (0) is always 0. It may hold any place in a number, its value is always 0.

As, in 105, 350, 42017, 90218 the place value of 0 in each number is 0.

2. In a two-digit number, the place value of the ten-place digit is 10 times of the digit.

As, in 58, the place value of 5 is 5 × 10 = 50 and place value of 8 is 8 × 1= 8; the face value of 5 is 5 and of 8 is 8.

3. In the number 475, the digit 5 is at one’s place, digit 7 is at ten’s place and digit 4 is at hundred’s place.

So, place value of 5 = 5, place value of 7 = 7 × 10 = 70, and place value of 4 is 4 × 100 = 400.

Thus, for the place value of a digit, the digit is multiplied by the place value of 1 it has to be that place.

For Example:

In 768;

the place value of 8 = 8 × 1 = 8

the place value of 6 = 6 × 10 = 60 and

the place value of 7 is 7 × 100 = 700.

4. Now it is the general law that the digit possesses its place value as the product of the digit and place value of one to be at that position.

For Example:

(i) In a number 4129;

the place value of 9 is 9 × 1 = 9 as 9 is at one’s or unit’s place.

the place value of 2 is 2 × 10 = 20 as 2 is at ten’s place.

the place value of 1 is 1 × 100 = 100 as 1 is at hundred’s place.

the place value of 4 is 4 × 1000 = 4000 as 4 is at thousand’s place.

(ii) In a number 3720, the place value of

 3 is 3 × 1000 = 30007 is 7 × 100 = 7002 is 2 × 10 = 20 0 is 0 × 1 = 0 3 being at Th-place7 being at H-place2 being at T-place0 being at one’s or unit’s place

(iii) Place value of the digits 3702 are shown below:

(iv) Here, we also see that the place value of the digit 0 in a number is always zero, whatever may be its position.

Place-value of a Digit in a Number:

We know that the position of a digit in a number determines its corresponding value in the number. Let us consider the number 64,19,85,062 and write place-value of each digit in the following chart.

We read the above number as thirty-four crore, nineteen lakh, seventy-five thousand, fifty-two.

The place-value of a digit in a number depends upon the place it occupies in the place-value chart.

Place-Value of a Digit = Face-Value × Value of the Place it Occupies in the Place-Value Chart.

Note: The place value of a particular digit in a given number depends on its placing in the number.

Solved Examples Place-value of a Digit in a Number:

1. Consider the number 9,24,658

Let us arrange the digits of this in the place-value chart :

From the above place-value chart, we have,

8 is at ones place,

so its place-value is 8 ones = 8 × 1 = 8.

5 is at tens place,

so its place-value is 5 tens = 5 × 10 = 50.

6 is at hundreds place,

so its place-value is 6 hundreds =6 × 100 = 600.

4 is at thousands place,

so its place-value is 4 thousands = 4 × 1,000 = 4000.

2 is at ten thousands place,

so its place-value is 2 ten thousands =2 × 10,000 = 20,000.

9 is at lakhs place,

so its place-value is 9 lakhs = 9 × 1,00,000 = 9,00,000.

2. Write the place-value of 3 in each of the following numbers:

(i) 23,584

(ii) 3,70,964

(iii) 9,82,934

Solution: Arrange the digits of the numbers in the place-value chart.

(a) Place-value of 3 in 23,584 = 3 × 1,000 = 3,000.

(b) Place-value of 3 in 3,70,964 = 3 ×1,00,000 = 3,00,0000.

(c) Place-value of 3 in 9,82,934 = 3 × 10 = 30.

(d) Place-value of 3 in 6,53,827 = 3 × 1,000 = 3,000

REMEMBER

The place-value of 0 is always 0, whatever place it occupies in the place-value chart.

3.
Write the place-value of 5 in the given numbers:

(i) 50,21,38,761

(ii) 82,05,36,401

(iii) 79,46,15,380

Solution:

Let us arrange the digits in the place-value chart

(i)

Place value of 5 in the number is

5 × 10,00,00,000 = 50,00,00,000. It is read as fifty crore.

(ii)

Place value of 5 in the number is

5 × 1,00,000 = 5,00,000. It is read as five lakh.

(iii)

Place value of 5 in the number is

5 × 1,000 = 5,000. It is read as five thousand.

4. Write the place value of underlined digits in the given blank.

(i) 5,103

(ii) 7,00,496

(iii) 8,15,924

(iv) 2,18,951

Solution:

(i) 5,103

3 being at one’s or unit’s place

The place value of 3 in the number 5,103 is 3.

(ii) 7,00,496

7 being at Lakhs-place

The place value of 7 in the number 7,00,496 is 7,00,000.

(iii) 8,15,924

2 being at Tens-place

The place value of 2 in the number 8,15,924 is 20.

(iv) 2,18,951

2 being at Lakhs-place

The place value of 2 in the number 2,18,951 is 2,00,000.

5. Circle the following.

(i) Digit at lakhs place - 17,45,015

(ii) Digit with face value of 9 - 49,00,781

(iii) Digit at ten crores place - 92,15,55,470

(iv) Digit at ten thousands place - 75,19,778

(v) Digit at tens place - 92,15,55,470

Solution:

(i) 7

(ii) 9

(iii) 9

(iv) 1

(v) 7

6. Find the place value of 9 in the given numbers.

(i) 6,96,242

(ii) 3,29,162

(iii) 4,52,921

We first arrange the digits of the given number in the place value chart.

(i) Place value of 9 in the number 6,96,242 is

9 × 10,000 = 90,000

(ii) Place value of 9 in the number 3,29,162 is

9 × 1,000 = 9,000

(iii) Place value of 9 in the number 4,52,921 is

9 × 100 = 900

7. Write the place value of the digit underlined in each number.

(i) 67843

(ii) 765432

(iii) 865409

(iv) 736524

(v) 800026

7. (i) 7000

(ii) 700000

(iii) 5000

(iv) 30000

(v) 20

8. Rewrite using the Indian place-value chart and write the number name.

(i) 364,875

(ii) 42, 760, 542

(iii) 6,521,324

8. (i) 3,64,875; Three lakh sixty-four thousand eight hundred seventy-five.

(ii) 4,27,60,542; Four crore twenty-seven lakh sixty thousand five hundred forty-two

(iii) 65,21,324; Sixty-five lakh twenty-one thousand three hundred twenty-four.

9. Rewrite using the International place-value chart and write the number name.

(i) 7,24,60,542

(ii) 21,56,324

(iii) 2,83,964

9. (i) 72,460,542; Seventy-two million four hundred sixty thousand five hundred and forty-two.

(ii) 2,156,324; Two million one hundred fifty-six thousand three hundred and twenty-four.

(iii) 283,964; Two hundred eighty-three thousand nine hundred and sixty-four.

10. In 2798435, if the hundreds digit is increased by 3, then the difference between the place values of 7s is

(i) 597300

(ii) 699300

(iii) 569200

(iv) 4995300

Solution:

The given number is 2798435

Hundreds digit is increased by 3

Now the number is 2798735

difference between the place values of 7s = 700000 - 700

= 699300

Correct option is (ii) 699300

11. The difference in the place values of 6's between the greatest and smallest numbers formed using the digits 6, 0, 4, 9 is

(i) 4069

(ii) 6540

(iii) 540

(iv) 9640

Solution:

The greatest number formed using the digits 6, 0, 4, 9 is 9640

Place value of 6 in 9640 = 600

The smallest number formed using the digits 6, 0, 4, 9 is 4069

Place value of 6 in 4069 = 60

The difference in the place values of 6's between the greatest and smallest numbers = 600 - 60 = 540

Face Value:

Consider the number 3,92,687

It has six digits 3,9,2,6,8 and 7.

We say that in 3,92,687, the face value of 3 is 3, 9 is 9, 2 is 2, 6 is 6, 8 is 8 and 7 is 7.

The face-value of a digit in a number is value of the digit itself regardless of the position of the digit.

Examples:

Find the face-value of:

(i) 2 in 3, 46, 294

(ii) 5 in 35, 192

(iii) 8 in 2,62,498

(iv) 6 in 61,490

Solution:

(i) Face-value of 2 in 3,46,294 is 2.

(ii) Face-value of 5 in 35, 192 is 5.

(iii) Face-value of 8 in 2,62,498 is 8.

(iv) Face-value of 6 in 61,490 is 6.

Activity for understanding place values of digits in 5-and 6-digit numbers using paper strips.

Required Materials: Paper strips of dimensions 20 cm × 5 cm (approx.)

Instructions:

Step I: Take a paper strip and fold it into 6 equal parts as shown.

Step II: Write 3,00,000 in the first box from left of the strip.

Step IV: In the next box write 50,000.

Step V: Similarly, in the next boxes, write 8000, 400, 30 and 7 respectively.

Step V: Now, carefully fold the strip as shown below.

In this way, the folded strip represents the number 358437

Step VI: If we unfold it, it represents the place value of each digit.

In the same way, we can form other numbers and get the place value of each digits.

Solved Examples on Place Value and Face Value:

1. What is the difference between the place value and face value of the digit 5 in 8795648?

Solution:

Place value of the digit 5 in 8795648 is 5000

Face value of the digit 5 in 8795648 is 5

Therefore, the difference between the place value and face value of the digit 5 in 8795648 = 5000 - 5 = 4995

2. What is the product of the place values of two 4's in 843940?

Solution:

The product of the place values of two 4's in 843940 = 40000 × 40

= 1600000

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