Question
Estimate the sum of 975 and 778 to the nearest hundred.
- 1200
- 1300
- 1700
- 1800
Hint:
In the given question first we have to calculate the sum of 975 and 778 then round off the sum to nearest hundreds. For rounding off any number to nearest hundred, look at the tens digit of the number. If the digit is 0,1,2,3 or 4 then the digit at the hundreds place will round down to nearest hundred ,so, the digit at the hundred place would not change. If the digit is 5,6,7,8 or 9 then the digit at the hundreds place will round up to the next number.
The correct answer is: 1800
The sum of 975 and 778 = 975+778= 1753.
Conversion of 1753 to nearest hundreds = 1800.
Related Questions to study
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 .
