NCERT Solutions For Class 6 Maths Chapter 1 Knowing Our Numbers in Hindi - 2025-26
FAQs on NCERT Solutions For Class 6 Maths Chapter 1 Knowing Our Numbers in Hindi - 2025-26
1. How do I correctly solve questions on placing commas and writing number names in the Indian System of Numeration as per NCERT Class 6 Maths Chapter 1?
To solve these questions correctly according to the NCERT method, follow these steps. First, starting from the right, place the first comma after the hundreds place (after three digits). Second, continue placing commas after every two digits thereafter, separating lakhs and crores. For example, in the number 54321678, the commas would be placed as 5,43,21,678. You would then write the number name as 'Five crore forty-three lakh twenty-one thousand six hundred seventy-eight', ensuring each period (crore, lakh, thousand) is named correctly.
2. What is the step-by-step method to solve problems using the International System of Numeration in the NCERT textbook?
The correct procedure for the International System of Numeration involves placing commas after every three digits, starting from the right. For instance, the number 98765432 would be written as 98,765,432. The number name is then written based on these three-digit periods: 'Ninety-eight million, seven hundred sixty-five thousand, four hundred thirty-two'. The key is to consistently group in threes and use the correct period names like million and thousand.
3. What is the correct procedure for solving word problems involving large number operations found in Exercise 1.2 of NCERT Chapter 1?
To correctly solve word problems in Exercise 1.2, you must first identify the given information and what needs to be calculated. Second, determine the correct mathematical operation (addition, subtraction, multiplication, or division) required. For example, if a problem asks for the 'total number' of items, you likely need to add. If it asks for 'how much is left' or the 'difference', you must subtract. Finally, perform the calculation carefully, paying close attention to place values, and write the final answer with the appropriate units (e.g., rupees, kilograms, tickets).
4. How do you correctly apply the 'general rule' for estimation to find the approximate value as shown in NCERT solutions for Chapter 1?
The 'general rule' for estimation, as per the NCERT solutions, requires you to round off each number to its greatest place value before performing the calculation. For example, to estimate the sum of 5,290 and 17,986, you would round off 5,290 to 5,000 (nearest thousand) and 17,986 to 20,000 (nearest ten thousand). The estimated sum would then be 5,000 + 20,000 = 25,000. This method provides a quick and reasonable approximation for the actual answer.
5. How are the rules for writing Roman numerals applied to solve questions in Chapter 1?
To solve questions on Roman numerals, you must apply a few key rules from the NCERT chapter. First, if a smaller value symbol is written to the right of a larger value symbol, you add the values (e.g., VI = 5 + 1 = 6). Second, if a smaller value symbol (only I, X, or C) is to the left of a larger one, you subtract it (e.g., IV = 5 - 1 = 4). Remember that a symbol cannot be repeated more than three times, and symbols like V, L, and D are never subtracted. Following these rules is the correct method to convert between Hindu-Arabic and Roman numerals.
6. When forming the smallest number from given digits, what is the correct method if one of the digits is zero?
This is a common point of error. To form the smallest number when one digit is zero, you cannot place the zero in the highest place value position, as that would make it a number with fewer digits. The correct method is to place the next smallest digit in the highest place value position and then place the zero immediately after it. For example, with digits 4, 0, 2, 8, the smallest 4-digit number is 2,048, not 0248.
7. Why is understanding place value in Chapter 1 essential for correctly solving problems, not just for large numbers but for future topics?
Understanding place value is the foundation of the number system and is critical for solving problems accurately. In Chapter 1, it allows you to compare large numbers, write number names, and perform operations correctly. A mistake in place value leads to completely wrong answers. This concept is crucial for later chapters like 'Decimals', where the value of a digit depends on its position relative to the decimal point, and for understanding algorithms for multiplication and division in 'Playing with Numbers'. Without a solid grasp of place value, it is nearly impossible to master these advanced topics.
8. For the 2025-26 session, is the NCERT Class 6 Maths Chapter 1 titled "Knowing Our Numbers" or "Patterns in Mathematics"?
For the CBSE academic year 2025-26, the content covered in Chapter 1 of the NCERT Class 6 Maths textbook is Knowing Our Numbers. This chapter focuses on comparing large numbers, place value, using commas, estimation, and Roman numerals. The chapter titled "Patterns in Mathematics" is from a different or rationalised version of the textbook. Our NCERT Solutions are aligned with the standard 2025-26 syllabus, which covers the topics under "Knowing Our Numbers".






















