One night Ricky and her brother Micky decide to have some fun at their father's sweet shop. In the
shop they find 7 tins of 135 jelly beans each, 9 packets of 121 choc buds, 12 jars of 70 smarties
and 32 packets of 5 liquorice sticks.
a. Find the total number of sweets that Ricky and Micky find that night.
b. Find the difference between the number of choc buds and the number of smarties.