A customer gives the cashier $\$100$$100 to pay for a purchase of $\$72.95$$72.95. How much change should the cashier give the customer?

The following chart shows the winning times in a $100$100-metre race that takes place every four years.

How much faster was the winning time in $2000$2000 than the winning time in $2004$2004?

A calculator is $8.9$8.9 cm long. How far will $130$130 calculators reach if laid end to end? Give your answer in metres.

If $\$5884.92$$5884.92 was shared equally between $12$12 people, how much would each person receive?

Understand operations on fractions, decimals, percentages, and integers