1. 17-May-15 1 2 Exercise 3 4 5 6 8 9 10 11 12 15 714 19 18 17 16 13 Exercise 20 Exercise

2. Exercise 1 Q1 In a general knowledge quiz, contestants can gain points by answering questions correctly but they lose marks for wrong answers. Here are scores for three contestants. Sam KimAlex Round 1 15-9-7 Round 2 -91215 Round 3 -85 TOTAL Place the contestants in order of merit. -280 Answer: Kim – Alex – Sam

3. Exercise 1 Q2 This graph shows the increase in a baby's weight over the first 4 weeks of its life. What did the baby weigh in week 3? Answer: 4.2kg

4. Exercise 1 Q3 Calculate 3·6 + 1·3 + 1·8 Answer:6·7

5. Exercise 1 Q4 How long does it take Train A to travel from Stirling to Edinburgh? StirlingFalkirkEdinburgh Train A 071507330812 Train B 113811541225 Train C 120812251303 Train D 231323410017 Answer: 57 minutes

6. Exercise 2 Q1 Here are five temperatures. Number the temperatures in order, starting with the coldest. Answer: -2°C -4°C 2°C -5°C 0°C 1 2 3 4 5

7. Exercise 2 Q2 Calculate the difference between 12·45 and 6·987. Answer:5.463

8. Exercise 2 Q3 Lisa has £40 to spend. She buys 2 CDs for £14·50 each and a T shirt for £5·99. How much money has she left? Answer:£5.01

9. Exercise 2 Q4 David’s Gran is coming to visit him on the third Thursday in June. Here is the calendar for June. Write down the date of her visit. Answer:16 th June SMTWTFS 1234 567891011 12131415161718 19202122232425 2627282930

10. Exercise 3 Q1 12·65 kilograms are cut from a block of cheese weighing 20 kilograms. What is the weight of the piece remaining? Answer:7.35 kg

11. Exercise 3 Q2 The results of a survey have been put into a pie chart. The survey was about the colours of cars travelling along a road. What percentage of the cars was white? Answer:25%

12. Exercise 3 Q3 How many metres are there in 5 km 40 m? Answer:5040

13. Exercise 3 Q4 8 groups of equal size are to be formed from 755 people. What is the largest group size possible? Answer:94

14. Exercise 4 Q1 Calculate 2·5 x 7 = Answer:17.5

15. Exercise 4 Q2 Calculate: 11·67 + 8·58 + 7·5 Answer:27.75

16. Exercise 4 Q3 One CD costs £13·49. How much will 6 CDs cost? Answer:£80.94

17. Exercise 4 Q4 Answer:A Which of the following is the greatest value? A 10% of 500 B 50% of 80 C 25% of 100 D 20% of 200 10% × 5 00 = 50 50% × 8 0 = 40 25% × 1 00 = 25 20% × 2 00 = 40

18. Exercise 5 Q1 At the start of the month, Gordon has £267 in his bank account. He spends £36·50 on CDs, £29·99 on clothes and £106 on food and travel over the month. How much money has he left at the end of the month? A Less than £90 B £90 – £94·99 C £95 – £100 D £100 – £104·99 E £105 or more 36.50 29.99 +106.00 172.49 267.00 - 172.49 94.51 Answer:B

19. Exercise 5 Q2

20. Exercise 5 Q3

21. Exercise 5 Q4