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# Worksheet on International System of Numeration

## Worksheet of International System of Numeration

### Solved Questions on the International System of Numeration

1. What is the place value of the digit 5 in the number 9,542,763?

a) 500
b) 50,000
c) 500,000
d) 5,000,000

Explanation: The digit 5 is in the hundred thousand places, which means its value is 5 x 100,000 = 500,000.

2. Which of the following is equivalent to 1 billion?

a) 10,000,000
b) 100,000,000
c) 1,000,000,000
d) 10,000,000,000

Explanation: 1 billion is equal to 1,000,000,000 or 109.

3. How many zeroes are in the number 1 quintillion?

a) 15
b) 18
c) 21
d) 24

Explanation: 1 quintillion has 18 zeroes, as it is equal to 10 to the power of 18.

4. What is the place value of the digit 6 in the number 73,986,452?

a) 6
b) 60
c) 600
d) 6,000

Explanation: In the International system of numeration, the value of a digit depends on its place value. The digit 6 is in the Thousands place, so its value is 6 multiplied by 1,000, which is 6,000.

5. Which number is equivalent to nine hundred twenty-five thousand six hundred four?

a) 925,604
b) 925,064
c) 925,604,000
d) 9,256,004

Explanation: In the International system of numeration, nine hundred twenty-five thousand is written as 925,000.

Therefore, the number is 925,000 + 604 = 925,604.

### Practice Questions on the International System of Numeration

1. Which of the following is not a place value in the International system of numeration?

a) Ones
b) Lakhs
c) Hundreds
d) Million

2. Write 648,340,021 in the International numeration system.

a) Six hundred forty-eight billion three hundred forty-hundred twenty-one
b) Six hundred forty-eight billion three hundred forty-thousand twenty-one
c) Six hundred forty-eight million three hundred forty-thousand twenty-one
d) One billion

Answer: c) Six hundred forty-eight million three hundred forty-thousand twenty one

3. Which number is equivalent to forty-five million six hundred seventy-eight thousand nine hundred ten?

a) 45,678,910
b) 4,36,78,910
c) 45,67,89,110
d) 4,56,78,91,000

4. Which of the following is the correct way to write 250000 in the international system of numeration?

a) 250,000
b) 2,5000
c) 2,50,000
d) 25,0000

5. What is the place value of the digit 8 in the number 6,723,958,437?

a) 8
b) 80
c) 800
d) 8,000

6. What is the next number after 999,999,999?

a) 1,000,000,000
b) 1,000,000,001
c) 1,000,000,010
d) 1,000,000,100

7. Which of the following is equivalent to 1 trillion?

a) 10,000,000,000
b) 100,000,000,000
c) 1,000,000,000,000
d) 10,000,000,000,000

8. What is the place value of the digit 6 in the number 6,872,415?

a) 6 Ones
b) 6 Tens
c) 6 Hundreds
d) 6 Million

9. Which of the following is the correct representation of the number 1.23 x 1099 in the international number system?

a) 1,230,000,000
b) 12,300,000
c) 123,000,000
d) 1,230,000

10. Which of the following is the correct representation of the number 3427589 in the international number system?

a) 34,2758,9
b) 3,427,589
c) 3427,58,9
d) 34,275,89

## Quick Video Recap

In this section, you will find interesting and well-explained topic-wise video summary of the topic, perfect for quick revision before your Olympiad exams.

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