2. Rational numbers

Amy is buying some supplies for the new school year.

She buys an exercise book for $\$9.55$$9.55, a pack of pens for $\$6.12$$6.12 and a pencil case for $\$6.28$$6.28.

How much does she spend in total?

Easy

Approx a minute

A calculator is $15.9$15.9 cm long.

Harry buys an item from the school canteen for $\$3.20$$3.20. If he pays for it with a five dollar note, how much change will he get back?

Lisa purchased a car and is paying monthly installments of $\$148.40$$148.40 per month to pay it off. If it takes her $60$60 months to pay it off, how much will she have spent on car repayments in total?

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Fluently add, subtract, multiply, and divide multi-digit decimals using the standard algorithm for each operation.