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All questions of Numbers for Class 5 Exam

What is the smallest 7-digit number?
  • a)
    10,00,000
  • b)
    9,99,999
  • c)
    1,00,000
  • d)
    1,00,00,000
Correct answer is option 'A'. Can you explain this answer?

Learning Enablers answered
The smallest 7-digit number is formed by adding 1 to the largest 6-digit number (9,99,999), resulting in 10,00,000 (ten lakhs). This is a fundamental concept in understanding how number systems work.
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What is the value of 3,42,13,211 when rounded to the nearest 100?
  • a)
    3,42,13,210
  • b)
    3,42,13,300
  • c)
    3,42,13,250
  • d)
    3,42,13,200
Correct answer is option 'D'. Can you explain this answer?

Learning Enablers answered
To round to the nearest 100, you look at the tens place digit. In 3,42,13,211, the tens digit is 1 (less than 5), so you keep the hundreds digit the same and change the tens and ones digits to 0, resulting in 3,42,13,200.

Which system divides large numbers into periods of ones, thousands, lakhs, and crores?
  • a)
    Decimal System
  • b)
    Roman Number System
  • c)
    Indian Number System
  • d)
    International Number System
Correct answer is option 'C'. Can you explain this answer?

Dr Manju Sen answered
The Indian Number System divides large numbers into periods of ones, thousands, lakhs, and crores, making it unique compared to the International Number System which uses millions.

In the Indian number system, how are commas placed in large numbers?
  • a)
    No commas are used
  • b)
    After the first 3 digits, then every 2 digits
  • c)
    After every 2 digits
  • d)
    After every 3 digits
Correct answer is option 'B'. Can you explain this answer?

Glitz Classes answered
In the Indian number system, commas are placed starting from the right after the first three digits, and then after every two digits. This helps in identifying place values easily, such as in the number 92,35,40,295.

What is the face value of the digit 5 in the number 45,67,89,012?
  • a)
    5,00,000
  • b)
    5,00,000,000
  • c)
    5
  • d)
    50,00,000
Correct answer is option 'C'. Can you explain this answer?

Subset Academy answered
The face value of a digit is simply the value of the digit itself, regardless of its position. Therefore, the face value of 5 in 45,67,89,012 is 5.

What is the standard form of the number represented in expanded form as 20,00,00,000 + 3,00,00,000 + 40,00,000 + 20,000 + 8,000 + 700 + 60 + 2?
  • a)
    23,40,28,800
  • b)
    23,40,28,760
  • c)
    23,40,28,762
  • d)
    23,40,28,750
Correct answer is option 'C'. Can you explain this answer?

Gunjan Lakhani answered
The standard form is obtained by combining the place values in their correct positions, resulting in 23,40,28,762. This process illustrates how numbers can be broken down and reassembled.

Which digit represents the ten lakhs place in the number 62,14,36,754?
  • a)
    4
  • b)
    1
  • c)
    2
  • d)
    6
Correct answer is option 'B'. Can you explain this answer?

Kds Coaching answered
In the number 62,14,36,754, the digit in the ten lakhs place is 1. The place values are determined by the position of each digit, and this helps in understanding how large numbers are structured.

In the number 64,34,76,586, what is the tens digit?
  • a)
    4
  • b)
    8
  • c)
    6
  • d)
    5
Correct answer is option 'B'. Can you explain this answer?

Gunjan Lakhani answered
In the number 64,34,76,586, the tens digit is 8. Identifying specific digits within a number is essential for rounding and place value calculations.

Which of the following represents rounding off the number 69,33,89,427 to the nearest 10?
  • a)
    69,33,89,420
  • b)
    69,33,89,400
  • c)
    69,33,89,430
  • d)
    69,33,89,440
Correct answer is option 'C'. Can you explain this answer?

Dr Manju Sen answered
To round off to the nearest 10, you look at the ones place digit. Since it is 7 (greater than 5), you increase the tens digit by 1 and set the ones digit to 0. Thus, it rounds to 69,33,89,430.

What is the term used for arranging numbers from smallest to largest?
  • a)
    Random order
  • b)
    Ascending order
  • c)
    Descending order
  • d)
    Numerical order
Correct answer is option 'B'. Can you explain this answer?

Learning Enablers answered
Arranging numbers from smallest to largest is called ascending order. This is a common practice in mathematics to help organize numbers for analysis or reporting.

How do you determine the predecessor of a number?
  • a)
    Subtract 1
  • b)
    Add 1
  • c)
    Divide by 2
  • d)
    Multiply by 2
Correct answer is option 'A'. Can you explain this answer?

Learning Enablers answered
The predecessor of a number is found by subtracting 1 from it. For example, the predecessor of 3,42,13,211 is 3,42,13,210. This concept is crucial for understanding sequences of numbers.

If you add 1 to the largest 9-digit number, what is the result?
  • a)
    1,00,00,00,000
  • b)
    99,99,99,999
  • c)
    1,00,00,001
  • d)
    1,00,00,000
Correct answer is option 'A'. Can you explain this answer?

Subset Academy answered
The largest 9-digit number is 99,99,99,999.
If you add 1 to this number, you will get:
  • 1,00,00,00,000 - This is a 10-digit number.
  • 99,99,99,999 - This is the original number.
  • 1,00,00,001 - This is not correct for our question.
  • 1,00,00,000 - This is also not correct.
Therefore, the result of adding 1 to the largest 9-digit number is:
1,00,00,00,000.

What is the method for rounding off a number to the nearest 1,000?
  • a)
    Look at the tens place
  • b)
    Look at the ones place
  • c)
    Look at the thousands place
  • d)
    Look at the hundreds place
Correct answer is option 'D'. Can you explain this answer?

Dr Manju Sen answered
To round off to the nearest 1,000, you look at the hundreds place. If it is 5 or more, you increase the thousands digit by 1; otherwise, you keep it the same. This method simplifies large number approximations.

What is the largest 8-digit number?
  • a)
    1,00,00,000
  • b)
    8,99,99,99,999
  • c)
    10,00,00,000
  • d)
    9,99,99,999
Correct answer is option 'D'. Can you explain this answer?

Subset Academy answered
The largest 8-digit number is 9,99,99,999, which is referred to as ninety-nine crore ninety-nine lakh ninety-nine thousand nine hundred ninety-nine. Understanding the limits of number ranges is essential in mathematics.

Chapter doubts & questions for Numbers - Mathematics Class 5 ICSE 2025 is part of Class 5 exam preparation. The chapters have been prepared according to the Class 5 exam syllabus. The Chapter doubts & questions, notes, tests & MCQs are made for Class 5 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests here.

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