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All questions of Knowing Our Numbers for Class 6 Exam
Sum of 178 and 69 to nearest hundred is
- a)100
- b)200
- c)250
- d)300
Correct answer is option 'B'. Can you explain this answer?
Sum of 178 and 69 to nearest hundred is
a)
100
b)
200
c)
250
d)
300
|
Gunjan Lakhani answered |
To solve this, let's first find the sum of 178 and 69:
178+69=247
Now, we round 247 to the nearest hundred.
- The nearest hundred to 247 is 200 because 247 is closer to 200 than to 300.
So, the sum of 178 and 69 rounded to the nearest hundred is 200.
Answer: 2 (200)
Rita has a ribbon of length 2070 mm. Sita has a ribbon whose length is 1232 mm shorter than Rita's ribbon. What is the approximate length of Sita's ribbon when rounded to the nearest hundred (in millimeters)?- a)500
- b)1000
- c)800
- d)2000
Correct answer is option 'C'. Can you explain this answer?
Rita has a ribbon of length 2070 mm. Sita has a ribbon whose length is 1232 mm shorter than Rita's ribbon. What is the approximate length of Sita's ribbon when rounded to the nearest hundred (in millimeters)?
a)
500
b)
1000
c)
800
d)
2000
|
Subset Academy answered |
To find the approximate length of Sita's ribbon, we need to subtract 1232 mm from Rita's ribbon length and then round the result to the nearest hundred.
Rita's ribbon length = 2070 mm Sita's ribbon length = Rita's ribbon length - 1232 mm
Sita's ribbon length ≈ 2070 mm - 1232 mm Sita's ribbon length ≈ 838 mm
When rounded to the nearest hundred, Sita's ribbon length is approximately 800 mm.
Rita's ribbon length = 2070 mm Sita's ribbon length = Rita's ribbon length - 1232 mm
Sita's ribbon length ≈ 2070 mm - 1232 mm Sita's ribbon length ≈ 838 mm
When rounded to the nearest hundred, Sita's ribbon length is approximately 800 mm.
1 billion = ______ million
- a)10
- b)100
- c)1000
- d)10000
Correct answer is option 'C'. Can you explain this answer?
1 billion = ______ million
a)
10
b)
100
c)
1000
d)
10000
|
|
Gunjan Lakhani answered |
One billion is equal to 1000 million. This is because when we multiply 1000 by 1000, we get 1 million. Therefore, if we multiply 1000 million by 1000, we get 1 billion.
Sum 3537 + 3884 to nearest tens is
- a)1000
- b)7400
- c)7420
- d)7440
Correct answer is option 'C'. Can you explain this answer?
Sum 3537 + 3884 to nearest tens is
a)
1000
b)
7400
c)
7420
d)
7440
|
Akshita Reddy answered |
Adding 3537 + 3884 to the nearest tens:
To get the nearest tens when adding two numbers, you need to round each number to the nearest ten before adding them together.
- Round 3537 to the nearest tens: 3540
- Round 3884 to the nearest tens: 3880
Now, add the rounded numbers:
3540 + 3880 = 7420
Therefore, the sum of 3537 + 3884 to the nearest tens is 7420, which corresponds to option 'C'.
To get the nearest tens when adding two numbers, you need to round each number to the nearest ten before adding them together.
- Round 3537 to the nearest tens: 3540
- Round 3884 to the nearest tens: 3880
Now, add the rounded numbers:
3540 + 3880 = 7420
Therefore, the sum of 3537 + 3884 to the nearest tens is 7420, which corresponds to option 'C'.
Estimated the value of the product of 108 and 12.
- a)1000
- b)1500
- c)1700
- d)2000
Correct answer is option 'A'. Can you explain this answer?
Estimated the value of the product of 108 and 12.
a)
1000
b)
1500
c)
1700
d)
2000
|
Swara Chakraborty answered |
Calculation:
To estimate the product of 108 and 12, we can round 108 to 100 and 12 to 10 for easier calculation.
Estimation:
100 x 10 = 1000
Therefore, the estimated value of the product of 108 and 12 is 1000.
So, the correct answer is option 'A'.
To estimate the product of 108 and 12, we can round 108 to 100 and 12 to 10 for easier calculation.
Estimation:
100 x 10 = 1000
Therefore, the estimated value of the product of 108 and 12 is 1000.
So, the correct answer is option 'A'.
What is the even prime number?- a)3
- b)2
- c)1
- d)None of the above
Correct answer is option 'B'. Can you explain this answer?
What is the even prime number?
a)
3
b)
2
c)
1
d)
None of the above
|
Ananya Das answered |
Even Prime Number
An even number is a number that is divisible by 2. However, the only even prime number is 2. Here's why:
Explanation
- A prime number is a number greater than 1 that has no positive divisors other than 1 and itself.
- Even numbers are divisible by 2, which means they have 2 as a factor.
- The only even number that meets the definition of a prime number is 2 because it has no other factors besides 1 and 2.
- All other even numbers, such as 4, 6, 8, etc., have factors other than 1 and themselves, making them composite numbers.
Therefore, the even prime number is 2, making option 'B' the correct answer.
An even number is a number that is divisible by 2. However, the only even prime number is 2. Here's why:
Explanation
- A prime number is a number greater than 1 that has no positive divisors other than 1 and itself.
- Even numbers are divisible by 2, which means they have 2 as a factor.
- The only even number that meets the definition of a prime number is 2 because it has no other factors besides 1 and 2.
- All other even numbers, such as 4, 6, 8, etc., have factors other than 1 and themselves, making them composite numbers.
Therefore, the even prime number is 2, making option 'B' the correct answer.
The tickets sold for the semi-final IPL match were 9872, whereas 10050 tickets were sold during the finals. How many more tickets, estimated to the nearest tens, were sold during the finals?- a)160
- b)170
- c)180
- d)190
Correct answer is option 'C'. Can you explain this answer?
The tickets sold for the semi-final IPL match were 9872, whereas 10050 tickets were sold during the finals. How many more tickets, estimated to the nearest tens, were sold during the finals?
a)
160
b)
170
c)
180
d)
190
|
Vp Classes answered |
During the finals, 10050 tickets were sold, whereas for the semi-final match, only 9872 tickets were sold. To find out how many more tickets were sold during the finals, we subtract the number of tickets sold for the semi-finals from the number of tickets sold during the finals. Therefore, 10050 - 9872 = 178. Since we need to estimate to the nearest tens, the answer would be 180.
In the International system of numeration, one crore is equal to ______ million.- a)1
- b)10
- c)100
- d)1000
Correct answer is option 'B'. Can you explain this answer?
In the International system of numeration, one crore is equal to ______ million.
a)
1
b)
10
c)
100
d)
1000
|
Praveen Kumar answered |
In the International system of numeration, one crore is equal to ten million. This is because one crore is equal to ten million in the Indian numbering system, which is used in countries like India, Pakistan, and Bangladesh. In this system, one crore is equivalent to ten million, so the correct answer is 10.
The greatest natural number which when rounded off to the nearest hundreds as 500 is- a)540
- b)500
- c)450
- d)205
Correct answer is option 'A'. Can you explain this answer?
The greatest natural number which when rounded off to the nearest hundreds as 500 is
a)
540
b)
500
c)
450
d)
205
|
Rahul Kumar answered |
To find the greatest natural number that rounds off to 500 when rounded to the nearest hundred, consider the range of numbers that round to 500.
- Numbers from 450 to 549 round off to 500 when rounded to the nearest hundred.
- The greatest number in this range is 549.
So, the correct answer is A: 549.
Estimated value of 467 to nearest thousand is- a)Zero
- b)400
- c)470
- d)1000
Correct answer is option 'A'. Can you explain this answer?
Estimated value of 467 to nearest thousand is
a)
Zero
b)
400
c)
470
d)
1000
|
Eduskill Classes answered |
The estimated value of 467 to the nearest thousand is zero because when rounding to the nearest thousand, any number below 500 will be rounded down to zero. In this case, 467 is less than 500, so it gets rounded down to zero.
The price of a school bag is 250 Rs. 95 paise but Priya has only 210 Rs. 25 paise. How much more money does she require to buy the bag?- a)407 p
- b)4000 p
- c)4070 p
- d)470 p
Correct answer is option 'C'. Can you explain this answer?
The price of a school bag is 250 Rs. 95 paise but Priya has only 210 Rs. 25 paise. How much more money does she require to buy the bag?
a)
407 p
b)
4000 p
c)
4070 p
d)
470 p
|
EduRev Class 6 answered |
The price of the school bag is 250 Rs. 95 paise, while Priya has 210 Rs. 25 paise. To determine how much more money she needs, we first convert both amounts into paise.
- 250 Rs. 95 paise = 250 × 100 + 95 = 25,095 paise
- 210 Rs. 25 paise = 210 × 100 + 25 = 21,025 paise
Next, we subtract the amount Priya has from the total price of the bag:
25,095 paise - 21,025 paise = 4,070 paise
Therefore, Priya requires 4070 paise more to purchase the bag.
The smallest 5-digit number is bigger than the largest 4-digit number by _______.- a)999
- b)998
- c)1000
- d)1
Correct answer is option 'D'. Can you explain this answer?
The smallest 5-digit number is bigger than the largest 4-digit number by _______.
a)
999
b)
998
c)
1000
d)
1
|
Shiksha Academy answered |
The smallest 5-digit number is 10000, while the largest 4-digit number is 9999.
To determine the difference:
- 10000 - 9999 = 1
This shows that the smallest 5-digit number is greater than the largest 4-digit number by 1.
The correct answer is d) 1.
The sum of 267 + 132 to the nearest ten is _______.- a)300
- b)200
- c)350
- d)400
Correct answer is option 'D'. Can you explain this answer?
The sum of 267 + 132 to the nearest ten is _______.
a)
300
b)
200
c)
350
d)
400
|
|
Praveen Kumar answered |
First, add the numbers:
267 + 132 = 399
Now, round 399 to the nearest ten. Since the last digit (9) is 5 or greater, we round up to the next ten:
399 rounded to the nearest ten is 400.
So, the correct answer is D: 400.
Roman Numeral of 400 is- a)CD
- b)CL
- c)LD
- d)XC
Correct answer is option 'A'. Can you explain this answer?
Roman Numeral of 400 is
a)
CD
b)
CL
c)
LD
d)
XC
|
|
Vp Classes answered |
In Roman numerals:
- 400 is represented as CD.
- C stands for 100, and D stands for 500.
- Since 400 is 500 minus 100, it is written as CD.
Thus, the correct answer is A: CD.
Fill in the blanks:
1 million = ______ thousands- a)10
- b)100
- c)1000
- d)10000
Correct answer is option 'C'. Can you explain this answer?
Fill in the blanks:
1 million = ______ thousands
1 million = ______ thousands
a)
10
b)
100
c)
1000
d)
10000
|
Dr Manju Sen answered |
1 million is equal to 1,000,000. To find out how many thousands are in a million, we can use the following steps:
- Recognise that 1 thousand equals 1,000.
- Divide 1,000,000 by 1,000:
- 1,000,000 ÷ 1,000 = 1000.
Therefore, 1 million is equal to 1000 thousands.
Solve:
15 × 1000 + 7 × _______ + 6 × 10 = 15760- a)1
- b)10
- c)100
- d)1000
Correct answer is option 'C'. Can you explain this answer?
Solve:
15 × 1000 + 7 × _______ + 6 × 10 = 15760
15 × 1000 + 7 × _______ + 6 × 10 = 15760
a)
1
b)
10
c)
100
d)
1000
|
|
Vp Classes answered |
We are given the equation:
15 × 1000 + 7 × _______ + 6 × 10 = 15760
Let's simplify the known values first:
- 15 × 1000 = 15000
- 6 × 10 = 60
Now, substitute these values into the equation:
15000 + 7 × _______ + 60 = 15760
Subtract 15000 and 60 from 15760:
15760 - 15000 - 60 = 700
So, the missing value is:
7 × _______ = 700
To find the missing value, divide 700 by 7:
700 ÷ 7 = 100
Thus, the missing value is 100.
So, the correct answer is C: 100.
Find the smallest number among the following numbers. 1411, 14504, 2431, 10001, 9900- a)10001
- b)9900
- c)2431
- d)1411
Correct answer is option 'D'. Can you explain this answer?
Find the smallest number among the following numbers. 1411, 14504, 2431, 10001, 9900
a)
10001
b)
9900
c)
2431
d)
1411
|
|
EduRev Class 6 answered |
To find the smallest number among the given numbers, we simply compare their values:
- 1411
- 14504
- 2431
- 10001
- 9900
The smallest number is 1411, so the correct answer is D.
The number 28,549 when rounded off to the nearest hundreds is- a)28,000
- b)28,500
- c)28,600
- d)29,000
Correct answer is option 'B'. Can you explain this answer?
The number 28,549 when rounded off to the nearest hundreds is
a)
28,000
b)
28,500
c)
28,600
d)
29,000
|
|
EduRev Class 6 answered |
To round 28,549 to the nearest hundred, follow these steps:
- Identify the tens place, which is 4.
- Since 4 is less than 5, we round down.
- This keeps the hundreds place the same.
Therefore, 28,549 rounded to the nearest hundred is 28,500.
The correct answer is B: 28,500.
The biggest 4 digit number formed by using each of the digits 5, 7, 8, 9, without repetition is- a)9875
- b)8975
- c)7589
- d)5789
Correct answer is option 'A'. Can you explain this answer?
The biggest 4 digit number formed by using each of the digits 5, 7, 8, 9, without repetition is
a)
9875
b)
8975
c)
7589
d)
5789
|
|
Shiksha Academy answered |
The question asks for the biggest 4-digit number that can be formed using the digits 5, 7, 8, and 9 without repetition.
The largest possible number formed with these digits is:
- 9875
This number is indeed the greatest that can be created using each digit exactly once.
The smallest natural number which when rounded off to the nearest hundreds as 500 is- a)499
- b)501
- c)450
- d)549
Correct answer is option 'C'. Can you explain this answer?
The smallest natural number which when rounded off to the nearest hundreds as 500 is
a)
499
b)
501
c)
450
d)
549
|
|
EduRev Class 6 answered |
To find the smallest natural number that rounds off to 500 when rounded to the nearest hundred, consider the range of numbers that round to 500.
- Numbers from 450 to 549 round off to 500 when rounded to the nearest hundred.
- Therefore, the smallest number that rounds to 500 is 450.
So, the correct answer is C: 450.
Chapter doubts & questions for Knowing Our Numbers - Maths Olympiad Class 6 2025 is part of Class 6 exam preparation. The chapters have been prepared according to the Class 6 exam syllabus. The Chapter doubts & questions, notes, tests & MCQs are made for Class 6 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests here.
Chapter doubts & questions of Knowing Our Numbers - Maths Olympiad Class 6 in English & Hindi are available as part of Class 6 exam.
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