# Assignment for Knowing Our Numbers Questions and Answers Paper (For CBSE, ICSE, IAS, NET, NRA 2022)

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Question 1

Solve the following

a.

b.

c.

d.

e.

Answer:

a. 10

b. 160

c. 1891

d. 17

e. 2464

Question 2

Estimate the following products (by general rule) :

1.

2.

3.

4.

Answer:

1.60000

2.15000000

3.12000

4.8000

Question 3

Estimate the following (by rounding off to nearest hundreds) :

a. 6,941

b. 6,320

c. 416

d. 126

e. 109

f. 202

g. 146

h. 7,684

i. 8,311

j. 986

Answer:

a. 6900

b. 6300

c. 400

d. 100

e. 100

f. 200

g. 100

h. 7700

i. 8300

j. 1000

Question 4

Estimate the following (by rounding off to nearest thousands) :

2,456

1,810

25,564

7,210

6,499

62,535

Question 5

X and Y worked as salesperson at a bookstore. They sold 6283 story books in all. X sold 3324 story books. How many story books were sold by Y?

Answer: 2959

Question 6

A factory makes 132 machines per day. How many machines will the factory make in March?

Answer: 4092

Question 7

The population of a town was 9,75, 689. In the first year it increased by 4563 and in the second year it decreased by 8976. What was the population of the town at the end of second year?

Answer: 962150

Question 8

Is a table costs ₹ 450 and a chair costs ₹ 225, find the total amount needed to buy 30 table and 50 chairs.

Answer: 686250

Question 9

A Game zone was held for four days in a school. The number of tickets sold at the counter on the first, second, third and final day was respectively 1091,1802, 1050 and 1751. Find the total number of tickets sold on?

Answer: 5694

Question 10

How many thousands make a million?

How many lakhs make a crore?