Selina Class 6 ICSE Solutions Mathematics : Chapter 4- Place Value
Selina Class 6 ICSE Solutions Mathematics : Chapter 4- Place Value

Class 6: Maths Chapter 4 solutions. Complete Class 6 Maths Chapter 4 Notes.

Selina Class 6 ICSE Solutions Mathematics : Chapter 4- Place Value

Selina 6th Maths Chapter 4, Class 6 Maths Chapter 4 solutions

Exercise 4(A) page no: 25

1.Fill in the blanks :
(i) In 20 kg, the unit is ………….., which is taken …………. times.
(ii) In 80 m, the unit is …………., which is taken …………. times.
(iii) If a unit cm (centimetre) is taken 5 times, the corresponding quantity is …………….
(iv) If a unit km (kilometre) is taken 24 times, the corresponding quantity is ……………
(v)

NumberNumeralNumeration
(a) …. 53…..………..……………..
(b) ………………..9……….……………….
(c) …..240……………….…………………

Solution:

(i) In 20 kg, the unit is Kg, which is taken 20 times.

(ii) In 80 m, the unit is m, which is taken 80 times.

(iii) If a unit cm (centimetre) is taken 5 times, the corresponding quantity is 5 cm.

(iv) If a unit km (kilometre) is taken 24 times, the corresponding quantity is 24 km.

(v)

NumberNumeralNumeration
(a) 5353Fifty three
(b) 99Nine
(c) 240240Two hundred forty

2. Fill in the blanks :
(i) In 24,673, the place value of 6 is ………..
(ii) In 8,039, the place value of 8 is …………..
(iii) In 3,25, 648, the local value of 5 is ……………
(iv) In 6,439, the local value of 6 is ……….

Solution:

(i) In 24, 673, the place value of 6 is 6 × 100

= 600

(ii) In 8, 039, the place value of 8 is 8 × 1000

= 8000

(iii) In 3, 25, 648, the local value of 5 is 5 × 1000

= 5000

(iv) In 6, 439, the local value of 6 is 6 × 1000

= 6000

3. Find the difference between the place values of 3 and 5 in the number 3945.

Solution:

Place value of 3 in 3945 is 3000

Place value of 5 in 3945 is 5

Difference between them = 3000 – 5

= 2995

Hence, the difference between the place value of 3 and 5 in the number 3945 is 2995

4. In the number 40562
(i) the local value of 5 = …………..
(ii) the place value of 6 = ………..
(iii) the sum of the place value of 5 and the place value of 6 = …………

Solution:

(i) The local value of 5 = 500

(ii) The place value of 6 = 60

(iii) The sum of the place value of 5 and the place value of 6 = 500 + 60

= 560

5.Read and write the following numbers in words and also in expanded form :
(i) 35,000 = …………
(ii) 76,000 = ……………
(iii) 6,23,000 = ………….
(iv) 40,075 = …………….
(v) 50,004 = ………..

Solution:

(i) 35,000 = Thirty five thousands

3 × 10000 + 5 × 1000

(ii) 76, 000 = Seventy six thousands

7 × 10000 + 6 × 1000

(iii) 6, 23, 000 = Six lakhs twenty three thousands

6 × 100000 + 2 × 10000 + 3 × 1000

(iv) 40, 075 = Forty thousand seventy five

4 × 10000 + 7 × 10 + 5 × 1

(v) 50, 004 = Fifty thousand four

5 × 10000 + 4 × 1

6. Find the difference in the place values of two sevens in the number 8, 72, 574.

Solution:

In the number 8, 72, 574 the first 7 occurs at thousand place

Its place value is 70000

The second 7 occurs at tens place

Its place value is 70

The difference of the two place value of 7 = 70000 – 70

= 69930

Hence, the difference in the place value of two 7 in number 872574 is 69930

Exercise 4(b) page no: 27

1. Fill in the blanks :
(i) 999 + 1 = …………
(ii) 10,000 – 1 = …………
(iii) 10 coins – one coin = …………
(iv) ₹ 99 + ₹ 1 = ………..
(v) 10,000 boys – 1 boy = ………..

Solution:

(i) 999 + 1 = 1,000

(ii) 10,000 – 1 = 9,999

(iii) 10 coins – one coin = 9 coins

(iv) ₹ 99 + ₹ 1 = ₹ 100

(v) 10,000 boys – 1 boy = 9,999 boys

2. Would the number of students in your school be a 3-digit number or a 4-digit number or a 5-digit number?

Solution:

Number of students varies from one school to another school

The total strength of our school is 4410

Hence, it is a 4-digit number

3.Write the smallest number which is just more than 9, 99, 999.

Solution:

Given number = 9, 99, 999

Smallest number which is more than 1 is

9, 99, 999 + 1 = 10, 00, 000

10, 00, 000 is the smallest number which is just more than 9, 99, 999

4. Starting from the greatest 5-digit number, write the previous five numbers in descending order.

Solution:

Greatest 5-digit number = 99, 999

The previous five digit numbers in descending order are 99, 999 > 99, 998 > 99, 997 > 99, 996 > 99, 995 > 99, 994

5. Starting from the smallest 7-digit number, write the next four numbers in ascending order.

Solution:

Smallest 7-digit number = 10, 00, 000

The next four numbers in ascending order are 10, 00, 001 < 10, 00, 002 < 10, 00, 003 < 10, 00, 004.

6.How many numbers lie between the largest 3-digit number and the smallest 4-digit number?

Solution:

Largest 3-digit number = 999

Smallest 4-digit number = 1000

Required number = (1000 – 999)

= 1

Therefore 1 lies between the largest 3-digit number and the smallest 4-digit number.

7.How many 5-digit numbers are there in all?

Solution:

Largest 5-digit number = 99999

Largest 4-digit number = 9999

Required number = 99999 – 9999

= 90, 000

Hence, 90, 000 numbers are there in all

Exercise 4(B)

Exercise 4(b) page no: 27

1. Fill in the blanks :
(i) 999 + 1 = …………
(ii) 10,000 – 1 = …………
(iii) 10 coins – one coin = …………
(iv) ₹ 99 + ₹ 1 = ………..
(v) 10,000 boys – 1 boy = ………..

Solution:

(i) 999 + 1 = 1,000

(ii) 10,000 – 1 = 9,999

(iii) 10 coins – one coin = 9 coins

(iv) ₹ 99 + ₹ 1 = ₹ 100

(v) 10,000 boys – 1 boy = 9,999 boys

2. Would the number of students in your school be a 3-digit number or a 4-digit number or a 5-digit number?

Solution:

Number of students varies from one school to another school

The total strength of our school is 4410

Hence, it is a 4-digit number

3.Write the smallest number which is just more than 9, 99, 999.

Solution:

Given number = 9, 99, 999

Smallest number which is more than 1 is

9, 99, 999 + 1 = 10, 00, 000

10, 00, 000 is the smallest number which is just more than 9, 99, 999

4. Starting from the greatest 5-digit number, write the previous five numbers in descending order.

Solution:

Greatest 5-digit number = 99, 999

The previous five digit numbers in descending order are 99, 999 > 99, 998 > 99, 997 > 99, 996 > 99, 995 > 99, 994

5. Starting from the smallest 7-digit number, write the next four numbers in ascending order.

Solution:

Smallest 7-digit number = 10, 00, 000

The next four numbers in ascending order are 10, 00, 001 < 10, 00, 002 < 10, 00, 003 < 10, 00, 004.

6.How many numbers lie between the largest 3-digit number and the smallest 4-digit number?

Solution:

Largest 3-digit number = 999

Smallest 4-digit number = 1000

Required number = (1000 – 999)

= 1

Therefore 1 lies between the largest 3-digit number and the smallest 4-digit number.

7.How many 5-digit numbers are there in all?

Solution:

Largest 5-digit number = 99999

Largest 4-digit number = 9999

Required number = 99999 – 9999

= 90, 000

Hence, 90, 000 numbers are there in all

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Selina Class 6 ICSE Solutions Mathematics : Chapter 4- Place Value

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