Question

find the sum of 7 m 50 cm and 500 cm in metres.

Answer 1

1 cm = 100 cm

so, convert 7m 50cm into cm

7*100+50

=750 cm

750+500

=1250cm
convert it back into meter.

1250/100

12.5 m is the answers.

Answer 2

We know that,

1 m = 100 cm
=> 100 cm = 1 m
=> 1 cm = 1/100 m

Now,

50 cm = 1/100 × 50 m
= 0.5 m

500 cm = 1/100 × 500
= 5 m


•°• (7 m 50 cm) + 500 cm = (7 m + 0.5 m) + 5 m
= 7.5 m + 5 m
= 12.5 m