Question

20cm less than 8m 40cm

Answer 1

not, possible
plzz mark as brainiest

Answer 2

Given,
8m 40cm
To Find,
20cm less than 8m 40cm.
Solution,
8m 40cm=800cm+40cm
                =840cm
So, 20cm less than 8m 40cm will be,

     840cm-20cm=820cm

Hence, 20cm less than 8m 40cm will be 820cm.