Tom is 2.75 m tall. His dad is 0.8 m
taller than him. How tall is his dad?

A book costs £3.75. Harry gave £5
note to the shopkeeper. How much
change will he get back?

A bottle holds 3.6 liters of milk. Tom uses
1.45 litres to make banana shake for
friends. How much is still in the bottle?