Year 3 Mental Maths

A farmer plants 429 trees on a plantation. He cuts down 315 of the trees. How many trees are left?

Find the sum of 15, 4 and 2.

Find the product of 9 and 5.

A frog eats 4 insects a day. How long will it take the frog to eat 40 insects?

Write $12 and 7 cents using a decimal point.

How many minutes are there in 2 hours?

Name the shape that has 3 sides.

Convert 2 kilometres to metres.

Round the number 159 to the nearest 10.

What is 20 more than 697?

Write the number five hundred and ninety-four in figures.

Mrs. Williams was making dinner. She marinated the roast beef for 240 minutes. How much time (in hours) did she marinate the beef?

Sally runs 3 kilometres a day. How far will she run in 1 week?

How many edges are there in a square-based pyramid?

Name the shape that has 5 sides.

How many faces are there in a triangular-based pyramid?

What is 36 divided by 6?

Round the number 458 to the nearest 100.

There are 165 girls and 125 boys on a school trip. How many students are there altogether?

Subtract 60 from 250.