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cbse 6th Standard Mathematics Whole Numbers Important Questions And Answers Study Material - QB365 Set C

Published on: 24/10/2025

Question Set C

cbse 6th Standard Mathematics Whole Numbers Important Questions And Answers Study Material - QB365

Download CBSE Class 6th Standard CBSE Mathematics question papers, sample papers, important questions, and previous year solved papers in PDF format. Get free study materials, NCERT solutions, and exam preparation resources for Class 6th Standard CBSE Mathematics

Questions + Answers key

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Std: 6th Standard CBSE - Mathematics

chapter: Whole Numbers - Important Questions And Answers

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Questions:

Generic 5

10 x 5 = 50

If \(\Delta\) is an operation such that a \(\Delta\) b = 2a + b + 3, then find the value of 5 \(\Delta\) 3.

Using properties of whole numbers, simplify the following:
(i) 5712 x 75 - 72 x 5712
(ii) 2103 x 68 - 32 x 2103.

Find the product of the smallest whole number with the largest three-digit whole number.

An auto driver filled his CNG cylinder with 30 kg of CNG. If the cost of CNG is Rs 38/kg, find the amount spent by the auto driver.

Find the value of the following:
(i) 175 x 17 + 175 x 25
(ii) 207 x 80 + 207 x 20.

Sudhir bought 10 TV sets at a rate of Rs 2000 for one set. He sells them in Rs 25000. Find his profit.

Find the value of 3 x (7 + 3), 5 x (9 + 1) using distributive property.

In a city, polio drops were given to 212583 children on Sunday in March 2013 and to 216813 children in next month.
(a) Find the difference of the number of children getting polio drops in the two months.
(b) What is the value of vaccinating children for polio in India?

Find the difference between the smallest number of 7-digit and the largest number of 4-digit.

10.

Mr. Rajesh withdraws Rs 100000 from his bank account. He purchased a TV set for Rs 38650, a refrigerator for Rs 23880 and jewellery worth Rs 35560. How much money was left with him?

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Answers Key:

Generic 5

10 x 5 = 50

(i) 17136
(ii) 75708.

Rs 1140

(i) 7350
(ii) 20700.

Rs 5000

30, 50

(a) Given, number of children, who got polio drops in March 2013 = 212583
Number of children, who got polio drops in next month = 216813
\(\therefore\) Difference of the number of children getting polio drops in two months
= 216813 - 212583 = 4230 children.
(b) Importance of pulse polio drops
The children are vaccinated for their protectior against deadly polio virus. All the babies below 5 yrs of age are given oral polio vaccine simultaneously, it helps to eradicate the virus.

The smallest number of 7-digit = 1000000
and the largest number of 4-digit = 9999
\(\therefore\) The difference between them
= 1000000 - 9999 = 990001

10.

Given, money withdraws from bank = Rs 100000
Money spent on TV = Rs 38650
Money spent on refrigerator = Rs 23880
Money spent on jewellery = Rs 35560
Total amount spent
= 38650 + 23880 + 35560
= Rs 98090
Left money
= Rs 100000 - Rs 98090 = Rs 1910.