QWC questions Additional Specimen Paper 3 (Grade C) Instructions • • • • Check that you can do the maths! Try the mystery in pairs Then try the exam question on your own Finally, they can compare this to the model solution Manchester to New York Mathematical skills 1 Multiplying decimals Questions 1. Work these out Answers 1. Work these out a) b) c) d) e) a) b) c) d) e) 1.8 x 3 1.7 x 5 0.6 x 8 1.8 x 23 1.9 x 32 5.4 8.5 4.8 41.4 60.8 Manchester to New York Mathematical skills 2 Negative numbers Questions 1. Work these out Answers 1. Work these out a) b) c) d) e) a) b) c) d) e) 4 x -3 -12 x -5 -3 x 9 -10 ÷ 2 30 ÷ -6 -12 60 -27 -2 -5 Manchester to New York Mathematical skills 3 Multiply fractions Questions 1. Multiply these fractions a) b) c) 5 9 5 9 5 9 x 18 x 27 x9 Answers 1. Multiply these fractions a) 10 b) 15 c) 5 Manchester to New York Maths skills 4 Substitution Questions 1. Substitute the values below into the formula C= 5 9 𝐹 − 32 a) 41oF b) 23oF c) 14oF Answers 1. Substitute the values below into the formula C= 5 9 𝐹 − 32 a) 5oC b) -5oC c) -10oC Manchester to New York Maths skills 5 Substitution Questions 1. Substitute the values below into the formula F = 1.8C + 32 Answers 1. Substitute the values below into the formula F = 1.8C + 32 a) 0oC b) 2oC c) -3oC a) 32oF b) 35.6oF c) 26.6oF Max flew from Manchester to When he left Manchester the New York in January 2010 temperature was -3oC 5 C = 9 𝐹 − 32 When he arrived in New York the temperature was 23oF Both temperatures need to be in oF or oC. Decide which you will do. Substitute in to one of the formula. Or substitute -3oC into F = 1.8C + 32 To get both temperatures in oF Subtract one from the other to get the difference Which city was colder and what was the difference in the temperatures? F = 1.8C + 32 Either substitute 23oF into 5 C = 9 𝐹 − 32 To get both temperatures in oC Question 6a Additional Specimen Paper 3 The shaded cards are questions to help you get to your final answer. Try to work out the order to answer them in…then answer them! Additional Specimen Paper 3 (Grade C) Additional Specimen Paper 3 (Grade C) Model solution