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

 Page 1


ROUNDING OFF NUMBERS ROUNDING OFF NUMBERS
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ROUNDING OFF NUMBERS ROUNDING OFF NUMBERS
I n t r o d u c t i o n I n t r o d u c t i o n
On the following slides you will see an addition
problem. Estimate the sum by rounding each
number to the nearest hundred before adding.
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ROUNDING OFF NUMBERS ROUNDING OFF NUMBERS
I n t r o d u c t i o n I n t r o d u c t i o n
On the following slides you will see an addition
problem. Estimate the sum by rounding each
number to the nearest hundred before adding.
Rounding off the Numbers to
the Nearest Ten
Rounding off the Numbers to
the Nearest Ten
Rule :-  To round off a number to the nearest ten,
we round it off to the multiple of ten,
nearest to it. A number which is midway is always
rounded up.
Page 4


ROUNDING OFF NUMBERS ROUNDING OFF NUMBERS
I n t r o d u c t i o n I n t r o d u c t i o n
On the following slides you will see an addition
problem. Estimate the sum by rounding each
number to the nearest hundred before adding.
Rounding off the Numbers to
the Nearest Ten
Rounding off the Numbers to
the Nearest Ten
Rule :-  To round off a number to the nearest ten,
we round it off to the multiple of ten,
nearest to it. A number which is midway is always
rounded up.
E x a m p l e s : 68 is rounded off to 70.
Page 5


ROUNDING OFF NUMBERS ROUNDING OFF NUMBERS
I n t r o d u c t i o n I n t r o d u c t i o n
On the following slides you will see an addition
problem. Estimate the sum by rounding each
number to the nearest hundred before adding.
Rounding off the Numbers to
the Nearest Ten
Rounding off the Numbers to
the Nearest Ten
Rule :-  To round off a number to the nearest ten,
we round it off to the multiple of ten,
nearest to it. A number which is midway is always
rounded up.
E x a m p l e s : 68 is rounded off to 70.
Rounding off the Numbers to
the Nearest Hundred
Rounding off the Numbers to
the Nearest Hundred
Rule :-  To round off a number to the nearest
hundred, we round it off to the multiple of
hundred nearest to it. A number which is midway
is always rounded up.