Question

How do you solve 800m 35cm-154m 49cm for the smaller unit?

Answer 1

1 m = 100 cm
800 m = 800 x 100 = 80000 cm
Therefore, 800 m 35 cm = 80000 cm + 35 cm = 80035 cm

Also, 154 m = 154 x 100 = 15400 cm
Therefore, 154 m 49 cm = 15449 cm

Therefore, 800m 35cm - 154m 49cm = 80035 cm - 15449 cm = 64586 cm = 645m 86cm