Once upon a time in a jungle there lived a owl and a tribal man . They were enemies of each other . Everynight owl would sit on a tree and tribal man will reach there to shoot it . He can shoot it only if its height from the ground is 30m or less. Now help the owl to warn it before tribal reaches there.
Math Skills
Subtraction of Lengths of 1 unit (km, m, cm, mm) with borrowing.