Consolidating numbers up to 8 digits Quiz - ICSE Class 6 Mathematics

Free practice quiz: Consolidating numbers up to 8 digits (ICSE Class 6 Mathematics). 38 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

This ICSE Class 6 Mathematics practice quiz has 38 multiple-choice questions on Consolidating numbers up to 8 digits, and 38 of them come with an explanation. Try the 5 sample questions below (tap an option to check yourself), then play the full quiz online. No sign-up needed.

Sample questions

1. What is the largest 8-digit number that can be formed using the digits 1, 0, 9, 8, 7, 6, 5, and 4, without repetition?

   1. 98,765,410
   2. 98,765,401
   3. 98,765,014
   4. 10,456,789
   Show answer

   Answer: A. 98,765,410

   To form the largest number, we arrange the given digits in descending order. The digits are 9, 8, 7, 6, 5, 4, 1, 0. Arranging them in descending order gives 98765410.

2. What is the smallest 8-digit number that can be formed using the digits 5, 0, 2, 8, 1, 4, 9, and 7, without repetition?

   1. 1,02,45,789
   2. 1,02,45,798
   3. 1,20,45,789
   4. 0,12,45,789
   Show answer

   Answer: A. 1,02,45,789

   To form the smallest 8-digit number, we arrange the digits in ascending order. However, the first digit cannot be zero. The digits are 0, 1, 2, 4, 5, 7, 8, 9. Arranging them in ascending order with the smallest non-zero digit first is 1, followed by the remaining digits in ascending order: 0, 2, 4, 5, 7, 8, 9. This gives 1,02,45,789.

3. What is the sum of the largest 6-digit number and the smallest 6-digit number?

   1. 10,09,999
   2. 1,10,999
   3. 11,09,999
   4. 1,01,00,000
   Show answer

   Answer: C. 11,09,999

   The largest 6-digit number is 9,99,999. The smallest 6-digit number is 1,00,000. Their sum is 9,99,999 + 1,00,000 = 10,99,999, which is written as 11,09,999.

4. What is the expanded form of 5,00,00,000?

   1. 5 * 10^6
   2. 5 * 10^7
   3. 5 * 10^8
   4. 5 * 10^5
   Show answer

   Answer: B. 5 * 10^7

   The number 5,00,00,000 is five crore. In terms of powers of 10, this is 5 multiplied by 10 raised to the power of 7, because there are 7 zeros after the 5. So, it is 5 * 10^7.

5. How many crores are there in 5,00,00,000?

   1. 5
   2. 50
   3. 500
   4. 0.5
   Show answer

   Answer: A. 5

   One crore is 1,00,00,000. So, 5,00,00,000 contains 5 crores (5 * 1,00,00,000).

More questions in this quiz

Answers and explanations are in the full quiz.

1. If you have the number 7,56,34,891, what is the place value of the digit '5'?
2. Expand the number 5,28,07,394 in terms of place value.
3. What is the number that comes just before 3,00,00,000?
4. If we write the number seventy-five lakh twenty thousand six hundred and forty in figures, what is it?
5. What is the value of the digit '3' in the number 9,87,34,567?
6. Which of the following numbers is the largest?
7. Round the number 4,78,93,256 to the nearest lakh.
8. What is the successor of the number 9,99,99,999?
9. Write 1,23,45,678 in words.
10. What is the product of the smallest 8-digit number and 1?
11. How many lakhs are there in 2,50,00,000?
12. What is the value of the digit '4' in the number 1,24,87,567?
13. Arrange the following numbers in ascending order: 5,67,89,012; 5,67,90,123; 5,67,89,123; 5,67,90,012
14. How many 8-digit numbers can be formed using the digits 1, 2, 3, 4, 5, 6, 7, 8 without repetition?
15. What is the sum of the digits in the number 7,89,01,234?
16. What is the number that comes just after 9,99,99,999?
17. What is the sum of the number 8,76,54,321 and 1,23,45,678?
18. What is the place value of the digit '1' in the number 1,00,00,000?
19. What is the sum of the largest 8-digit number and the smallest 1-digit number?
20. If a number has 8 digits, what is the smallest possible value it can have?
21. What is the sum of the place value of '7' and the place value of '2' in the number 7,23,45,678?
22. How many zeros are there in the number ten crore?
23. What is the difference between the largest 8-digit number and the largest 7-digit number?
24. If we add 1 to the number 99,99,999, what is the resulting number?
25. What is the total number of 8-digit numbers that can be formed using the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, if repetition of digits is allowed?
26. What is the value of the digit '6' in the number 8,90,65,432?
27. What is the product of the largest 7-digit number and the smallest 1-digit number (excluding zero)?
28. Round the number 9,87,65,432 to the nearest ten lakh.
29. What is the value of the digit '8' in the number 1,89,00,000?
30. Which number is one more than 9,99,99,999?
31. What is the number that has 7 in the ones place, 4 in the tens place, 0 in the hundreds place, 2 in the thousands place, 8 in the ten thousands place, 5 in the lakhs place, and 3 in the ten lakhs place?
32. What is the number formed by 9 crores, 0 lakhs, 0 thousands, 0 hundreds, 0 tens, and 5 ones?
33. What is the sum of the number of 8-digit numbers and the number of 6-digit numbers?

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