**Q1: **

Simplify .

- A
- B
- C 180
- D
- E

**Q2: **

Simplify .

- A
- B
- C 280
- D
- E

**Q3: **

Simplify .

**Q4: **

Calculate .

- A
- B
- C
- D
- E

**Q5: **

Express in its simplest form.

- A
- B
- C
- D

**Q6: **

Find the difference between and .

- A
- B
- C
- D

**Q7: **

Which of the following is closest to ?

- A
- B
- C
- D
- E

**Q8: **

Calculate .

**Q9: **

Simplify .

- A
- B
- C
- D
- E

**Q10: **

Simplify .

- A
- B
- C
- D

**Q11: **

Simplify by rationalising the denominator.

- A
- B
- C
- D
- E

**Q12: **

Express in its simplest form.

- A
- B
- C
- D
- E

**Q13: **

Given that is the additive inverse of and , find the value of .