PPT: Rounding off Numbers | Mathematics for Class 5 PDF Download

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Rounding off R o u n d i n g o f f
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Rounding off R o u n d i n g o f f R O U N D I N G O F F Rounding off is a way to make a number simpler while
keeping it close to its original value.
We do this by changing the number to a nearby, easier
number, often a whole number or a number with fewer digits.
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Rounding off R o u n d i n g o f f R O U N D I N G O F F Rounding off is a way to make a number simpler while
keeping it close to its original value.
We do this by changing the number to a nearby, easier
number, often a whole number or a number with fewer digits.
ROUNDING OFF WHOLE NUMBERS
ROUNDING OFF TO THE NEAREST 10
If the digit in the ones place is 0, 1, 2, 3, or 4 (i.e. < 5) then
replace ones place by ‘0
Example: 
5,817,424 = 5,817,424 (4<5)
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Rounding off R o u n d i n g o f f R O U N D I N G O F F Rounding off is a way to make a number simpler while
keeping it close to its original value.
We do this by changing the number to a nearby, easier
number, often a whole number or a number with fewer digits.
ROUNDING OFF WHOLE NUMBERS
ROUNDING OFF TO THE NEAREST 10
If the digit in the ones place is 0, 1, 2, 3, or 4 (i.e. < 5) then
replace ones place by ‘0
Example: 
5,817,424 = 5,817,424 (4<5)
R O U N D I N G O F F W H O L E N U M B E R S ROUNDING OFF TO THE NEAREST 10
If the digit in the ones place is 5, 6, 7, 8 or 9 (i.e. > 5 or = 5,
but < 10), then replace ones digit by ‘0’ and add 1 to the
tens place
Example:
62,75,985 = 62,75,990 (5=5)
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Rounding off R o u n d i n g o f f R O U N D I N G O F F Rounding off is a way to make a number simpler while
keeping it close to its original value.
We do this by changing the number to a nearby, easier
number, often a whole number or a number with fewer digits.
ROUNDING OFF WHOLE NUMBERS
ROUNDING OFF TO THE NEAREST 10
If the digit in the ones place is 0, 1, 2, 3, or 4 (i.e. < 5) then
replace ones place by ‘0
Example: 
5,817,424 = 5,817,424 (4<5)
R O U N D I N G O F F W H O L E N U M B E R S ROUNDING OFF TO THE NEAREST 10
If the digit in the ones place is 5, 6, 7, 8 or 9 (i.e. > 5 or = 5,
but < 10), then replace ones digit by ‘0’ and add 1 to the
tens place
Example:
62,75,985 = 62,75,990 (5=5)
ROUNDING OFF LARGE NUMBERS
ROUNDING OFF TO THE NEAREST 100
If the digit in the tens place is 0, 1, 2, 3, or 4 (i.e. < 5) then
replace ones place by ‘0
Example: 
5,817,424 = 5,817,400 (2<5)