Question
Estimate the sum of 2397 and 5668 to the nearest hundred.
- 8000
- 8100
- 8200
- 8300
Hint:
In the question first find the sum of 2397 and 5668 then round off the sum to nearest hundred. To do so we will see the digit at the tens place if the number is 0 ,1,2,3 or 4 then the digit at the hundreds place will round down, the number will not change. But if the tens digit is 5,6,8, or 9 the number will round up to the next number. Also in both the case the digits at the tens and ones place will become 0.
The correct answer is: 8100
The sum of 2397 and 5668 = 2397+5668= 8065
Rounding the number 8065 to nearest number =8100.
Related Questions to study
Estimate the difference of 3816 and 1458 to the nearest hundred.
Estimate the difference of 3816 and 1458 to the nearest hundred.
Estimate the sum of 975 and 778 to the nearest hundred.
Estimate the sum of 975 and 778 to the nearest hundred.
Estimate the sum of 5786 and 2126 to the nearest thousands.
Step 1 : Round Off ;
if last three digits are more than or equal to 500 round off to nearest thousand greater than number.
5786 rounds off to 6000.
if last three digits less than 500, then round off to nearest thousand smaller than number.
2126 rounds off to 2000.
Step 2 : Perform Addition
6000 + 2000 = 8000 ;
So , 8000 is our estimated sum .
Estimate the sum of 5786 and 2126 to the nearest thousands.
Step 1 : Round Off ;
if last three digits are more than or equal to 500 round off to nearest thousand greater than number.
5786 rounds off to 6000.
if last three digits less than 500, then round off to nearest thousand smaller than number.
2126 rounds off to 2000.
Step 2 : Perform Addition
6000 + 2000 = 8000 ;
So , 8000 is our estimated sum .
Estimate the difference between 7123 and 3678 to the nearest thousands.
Step 1 : Round off
If last 3 digits are less than 500 than round off to nearest 1000 less than the number .
so, 7123 rounds off to 7000 .
If last 3 digits are greater than or equal to 500 than round off to nearest 1000 greater than the number.
so, 3678 rounds off to 4000 .
Step 2 : On performing subtraction
7000 - 4000 = 3000 ;
So, 3000 is our estimated answer.
Estimate the difference between 7123 and 3678 to the nearest thousands.
Step 1 : Round off
If last 3 digits are less than 500 than round off to nearest 1000 less than the number .
so, 7123 rounds off to 7000 .
If last 3 digits are greater than or equal to 500 than round off to nearest 1000 greater than the number.
so, 3678 rounds off to 4000 .
Step 2 : On performing subtraction
7000 - 4000 = 3000 ;
So, 3000 is our estimated answer.
The leading digit in 8574 is ________.
Here, 8 is the first digit as well as non-zero number, so leading digit in 8754 is 8 .
The leading digit in 8574 is ________.
Here, 8 is the first digit as well as non-zero number, so leading digit in 8754 is 8 .
