## Task 3

a) $8 \mathrm{~m}=\ldots \mathrm{cm} ; \quad 90 \mathrm{~mm}=\ldots \mathrm{cm} ; \quad 40 \mathrm{~cm}=\ldots \mathrm{dm}$

b) How many hours have passed from 18:00 to 23:00?

How many minutes are there from 7:15 to 7:55?
a) $8 \mathrm{~m}=80 \mathrm{~cm}$; $90 \mathrm{~mm}=9 \mathrm{~cm} ; 40 \mathrm{~cm}=4 \mathrm{dm}$

b) First time difference 5 hours, second 40 minutes.