Number Operations (Cambridge International IGCSE Maths): Exam Questions

Write down the integer values of x that satisfy the inequality $- 2 \text{less} - \text{than} or \text{slanted} \text{equal} to x < 2$.

Write two hundred thousand and seventeen in figures.

Write 15 060 in words.

Calculate.

$\frac{0.2^{3}-0.4^{2}}{0.6^{4}}$

Give your answer to 3 significant figures.

3.56 5 $\sqrt{196}$ 8 $\sqrt{7}$ 12

From the list, write down a number that is

i) a multiple of 3,

ii) a cube number,

iii) a prime number,

iv) an irrational number.

Write down a prime number between 50 and 60.

Write down a prime number between 20 and 30.

1, 2, 3, 5 and 7 are all common factors of two numbers. Write down the digit that the two numbers must end in.

Insert one pair of brackets to make this calculation correct.

$7-5-3+4=9$

Explain why $\sqrt{3}$ is irrational.