**Selina Concise Mathematics Class 6 ICSE Solutions – Place Value**

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**EXERCISE 4(A)**

**Question 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)

Number |
Numeral |
Numeration |

53 | …………. | ………. |

……… | 9 | ………… |

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 (centi metre) is taken 5 times, the corresponding quantity is** 5 cm.**

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

(v)

Number |
Numeral |
Numeration |

53 | 53 | fifty three |

9 | 9 | Nine |

240 | 240 | two hundred forty |

**Question 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 x 100 = 600.**

(ii) In 8, 039 ; the place value of 8 is **8 x 1000 = 8000.**

(iii) In 3, 25, 648 ; the local value of 5 is **5 x 1000 = 5000.**

(iv) In 6, 439 ; the local value of 6 is **6 x 1000 = 6000.**

**Question 3.**

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

**Solution:**

Place values of 3 in 3945 is 3000 and 5 is 5

Difference between them = 3000 – 5 = 2995

**Question 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 and its local value is 5.

(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

**Question 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 x 10000 + 5 x 1000

(ii) 76,000 = Seventy six thousands = 7 x 10000 + 6 x 1000

(iii) 6,23,000 = Six lakhs twenty three thousands = 6 x 100000 + 23 x 1000

(iv) 40,075 = Forty thousands seventy five = 4 x 10000 + 75 x 10 + 5

(v) 50,004 = Fifty thousands four = 5 x 10000 + 4

**Question 6.**

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

**Solution:**

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

=> Its place value = 70000

=> The second 7 occurs at ten’s place.

Its place value = 70

The difference of the two place values of 7 = 70000 – 70 = 69930

**EXERCISE 4(B)**

**Question 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 = ………..

(vi) 1000 toys – 1 toy = ……….

**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

(vi) 1000 toys – 1 toy = 999 toys

**Question 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:**

Note : This answer will vary from school to school.

Since, the total strength of M.G.N. Public school is 5410.

Hence, It is a 4-digit number.

**Question 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

**Question 4.**

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

**Solution:**

Greatest digit number = 99, 999

Next four numbers in descending order

99, 999 > 99998 > 99997 > 99996 > 99995

**Question 5.**

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

**Solution:**

Smallest 7-digit number = 10, 00, 000

Next four numbers in ascending order

10,00,001 < 1000002 < 1000003 < 1000004 <1000005

**Question 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

**Question 7.**

How many 5-digit numbers are there in all?

**Solution:**

Largest number of 5-digits = 99999 Largest number of 4-digits = 9999

Required number=99999 – 9999 = 90,000

So, 90,000 numbers are there in all.

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