Knowing Our Numbers Test

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Knowing Our Numbers Test - 8

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Weekly Quiz Competition

Question 1
1 / -0

A content team makes 6,523 questions a day. Which of the following is the best estimate?

A
6,700

B
6,800

C
6,500

D
7,000

Solution

We are going to round it to the nearest 100. We need to look at the tens column, if it is 5 or above, we are going to round up and if it is 4 or less, we are going to round down.
Rounded to the nearest 100, we will get 6,500 as the answer.
Question 2
1 / -0

'Forty-five crore eighty-three lakh two thousand eight hundred and five' in numerals is written as

A
45,12,45,521

B
51,12,45,758

C
43,78,62,837

D
45,83,02,805

Solution

Forty-five crore eighty-three lakh two thousand eight hundred and five = 45,83,02,805
Question 3
1 / -0

Place value of a digit decreases by ____ times, if it moves two places towards right.

A
100

B
10

C
1/10

D
1/100

Solution

The place value of the digit decreases when we move along right. So, it will be1/10, but here it is moving by two, so it will be 1/100 times.
Question 4
1 / -0

Arrange the following Roman numerals in descending order.

MDCC, MD, MDC

A
MD, MDCC, MDC

B
MDCC, MD, MDC

C
MDC, MD, MDCC

D
MDCC, MDC, MD

Solution

Descending order means biggest to smallest.
Each time the number is decreasing by the value of 100.
MDCC - 1,700
MDC - 1,600
MD - 1,500
So, MDCC, MDC, MD is the required sequence.
Question 5
1 / -0

Billion period consists of the places ______.

A
H, T, O

B
T, H, Th

C
H, TM, HM

D
B, TB, HB

Solution

Billion unit is a part of International Number System which contains 3 digits and is separated by a comma after 3 digits (of million period) from the right. The symbols for billion period are mentioned below.
B = Billion
TB = Ten billion
HB = Hundred billion

For example - 345,000,000,000 can be written as three hundred forty five billion.
Question 6
1 / -0

Shaveta's dog is 11 years old and Kriti's kitten is 3 years old. What is the product of their ages in roman numerals?

A
XIV

B
XVI

C
VIIL

D
XXXIII

Solution

Shaveta's dog is 11 years old.
Kriti's kitten is 3 years old.
Product of their ages = 11 × 3 = 33
In roman numerals, XXXIII = 33
Question 7
1 / -0

Choose the correct number name in Indian system for the given number.

500405000

A
Five crore four lakh and five thousand

B
Fifty crore forty lakh and five thousand

C
Five crore forty lakh and five thousand

D
Fifty crore four lakh and five thousand

Solution

50,04,05,000 = Fifty crore four lakh and five thousand
Question 8
1 / -0

Find the sum of the numbers given below and round the resultant number to the nearest thousand.

1,564 + 9,457

A
11,500

B
10,500

C
11,000

D
10,000

Solution

1,564 + 9,457 = 11,021
As we are going to round it to the nearest thousand, and it less than 5 in the hundreds column, so it will be rounded down.
So, the answer will be 11,000.
Question 9
1 / -0

Choose the difference between the face value and the place value of the underlined digit.

78,452

A
9000

B
7000

C
8008

D
7992

Solution

78,452
Face value is the actual value of the given digit i.e 8.
The place value of 8 is 8,000.
The difference is 8,000 - 8 = 7,992

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Re-Attempt Weekly Quiz Competition

Knowing Our Numbers Test - 8

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Knowing Our Numbers Test - 8

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SHARING IS CARING

Question 1

6,700

6,800

6,500

7,000

Solution

Question 2

45,12,45,521

51,12,45,758

43,78,62,837

45,83,02,805

Solution

Question 3

100

10

1/10

1/100

Solution

Question 4

MD, MDCC, MDC

MDCC, MD, MDC

MDC, MD, MDCC

MDCC, MDC, MD

Solution

Question 5

H, T, O

T, H, Th

H, TM, HM

B, TB, HB

Solution

Question 6

XIV

XVI

VIIL

XXXIII

Solution

Question 7

Five crore four lakh and five thousand

Fifty crore forty lakh and five thousand

Five crore forty lakh and five thousand

Fifty crore four lakh and five thousand

Solution

Question 8

11,500

10,500

11,000

10,000

Solution

Question 9

9000

7000

8008

7992

Solution

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