Question

mary buys a reel of thread for sewing there are 10 m of thread on the reel she uses 210 cm how much is left on the reel in cm

Answer 1

1 m=100cm
There was 10 m of thread i.e. 1000cm
She used 210cm
Thread left in the reel is 1000-210=790 cm

Answer 2

The length of the thread which is left on the reel is 790 cm.

Given data :

Total length = 10 m = 1000cm ( 1m = 100cm)

Used = 210 cm.

So the length of the remaining thread will be =

(Total amount - Used amount) = 1000-210 = 790 cm. (Answer)