Work through these on your own. Keep your working neat: the method matters as much as the answer. Questions marked H are for Higher tier.

1.3 Negative numbers — Practise

Work through these on your own. Keep your working neat: the method matters as much as the answer. Questions marked H are for Higher tier.

1. Write these in order, smallest first: $4,\ -2,\ 0,\ -7,\ 1$.
2. Work out $-8 + 3$.
3. Work out $5 - 12$.
4. Work out $-6 - 4$.
5. Work out $2 - (-9)$.
6. Work out $(-7) \times 3$.
7. Work out $(-6) \times (-6)$.
8. Work out $(-36) \div 4$.
9. The temperature falls from $2\, ^\circ\text{C}$ to $-5\, ^\circ\text{C}$. By how many degrees did it fall?
10. A submarine is at $-40$ m and rises $15$ m. What is its new depth?
11. A shop's takings are £210 and its costs are £235. Work out the profit as a negative number and describe the result.
12. In a quiz, teams score $+3$ for a correct answer and $-1$ for a wrong answer. A team gets 7 correct and 4 wrong. What is its total score?
13. H Work out $-4 + 6 - 3 + 2 - 5$.
14. H The product of two negative numbers is $+36$. Give two possible pairs.