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2.04 Applications of subtraction

Interactive practice questions

Find the value of $30-18-7$30187.

Less than a minute

A farmer has $88$88 sheep in a paddock and $46$46 cows in another paddock. $13$13 sheep are taken away to the wool shed, and while the farmer is away $3$3 sheep get out of the paddock through a hole in the fence.

How many sheep are in the paddock now?

Fiona has ordered $359$359 large bricks for the purpose of building a brick shed. She uses $225$225 bricks for the two side walls, $63$63 bricks for the back wall and $31$31 bricks for the front wall, leaving space for a door.

How many bricks will there be left over?

It took Caitlin $268$268 seconds to finish a race. Iain finished the race $2$2 seconds quicker than Caitlin, and Victoria finished the race $4$4 seconds quicker than Iain.

How many seconds did it take Victoria to finish the race?

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Select and apply efficient mental and written strategies and appropriate digital technologies to solve problems involving all four operations with whole numbers and make estimates for these computations


Continue and create sequences involving whole numbers, fractions and decimals. Describe the rule used to create the sequence

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