Number Toolkit (Cambridge (CIE) O Level Maths): Exam Questions

Work out  (0.01)² .

Write down the cube number that is greater than 50 but less than 100.

At noon the temperature in Maseru was 21°C.
At midnight the temperature had fallen by 26 °C.  

Work out the temperature at midnight.  

............................................. °C

Calculate $-12÷-2$. 

Here is a list of numbers.

From this list, write down

i) a prime number,

[1]

ii) an irrational number.

[1]

The temperature at 07 00 is -3 °C.
This temperature is 11 °C higher than the temperature at 01 00.  

Find the temperature at 01 00.

................................................ °C

22            17            25            41            39            4

Work out the difference between the two prime numbers in the list above.

One day in Chamonix the temperature at noon was 6°C.
At midnight the temperature was 11°C lower.

Write down the temperature at midnight.

............................................ °C

Work out.

$74.6\times 10-3.89\times 100$

$15125\sqrt{8}11\sqrt{25}1460$

From the numbers above, write down

an irrational number.

One day, the temperature at midday is 9°C.
At midnight the temperature has dropped by 15.3 °C.

Find the temperature at midnight.

...............................°C

From the numbers listed above, write down 

a square number,

a cube number,

an irrational number.

Work out.

$0.3\times 0.7$

Insert one pair of brackets to make this calculation correct.

$7-5-3+4=9$

$a$ is a prime number.

$b$ is an even number.

$N=a^2+ab$

Circle the correct statement about $N$.

Work out $12+8÷(9–5)$

Work out $0.018÷0.06$ .

Write these numbers in order, starting with the smallest.