# Teaching Treasures Maths Activity

## Problem Solving

1:

A window has a height of 32.5 cm and a length of 45 cm.
What is the window's area?

cm2

2:

A concrete tank can hold 20,000 gallons of water.
How many litres of water can the tank hold?

litres

3:

Nathan's home is 80 km to the nearest major town.
How many metres is that?

metres

4:

One seventh of the students in Sarah's school are 12 years old.
If there are 133 students in her school, how many students are 12 years old?

5:

A raging bush fire went through a pine plantation, ¾ of the trees died.
If there were 50,000 trees, how many died?

6:

Bob used 14¾ litres of fuel driving to a country town.
His fuel tank had 30 litres of fuel when he started,
how much fuel did he have left when he arrived at his destination?

 litres
7:

Mr. Stevens borrowed \$20,000 from his Australian cousin. He was charged 14½ % interest per annum. He repaid the loan 3 years later.
How much interest did Mr. Stevens pay?

8:

A truck travelled for 4½ hours at an average rate of 65 km/h.
How far did it travel during that time?

km

9:

400 - (20 x 8¼) + (15 x 9¾) =

10:

An American book shop mailed 2 books to the UK. Each of those books cost \$4.75 to mail to the respective customer. They also had to post 12 other books costing a further \$2.45 each for postage. What was the total postage cost?

11:

Janice planted 200 seeds; only 85% of these seeds grew. How many seeds did not grow?

12:

56 more than a number (n) is 78. What is the number?

n =

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