11+ · Topic guide

Letters for Numbers: Practice Set 2

Letters for Numbers: Practice Set 2 is a second practice round on the letter-key calculations used in 11+ verbal reasoning, where each letter stands for a fixed number and a short calculation must be worked out to find which letter matches the result. This set moves into calculations with two brackets, a mix of three operations, and keys where more than one letter has a value close to the answer.

Year 5-6 (11+)Verbal ReasoningGL AssessmentCEM

Before you start

Make sure you're comfortable with these topics first:

Method

  1. Write down the letter-to-number key exactly as given before starting any calculation.
  2. Underline or mark every bracket in the calculation, since whatever is inside a bracket must always be worked out first.
  3. Apply the order of operations precisely: brackets first, then multiplication and division, then addition and subtraction, working left to right within each stage.
  4. Substitute each letter's number into the calculation and write down the result of every stage, rather than trying to do the whole calculation in your head.
  5. Compare your final answer carefully to every value in the key, since this set often includes two letters with close values to catch a small arithmetic slip.
  6. Check your answer by substituting that letter's value back into the original calculation to confirm both sides match exactly.

Worked example

A=5, B=6, C=3, D=27, E=33. Work out (A + B) x C - B. Which letter has this value?

  1. Work out the bracket first: A + B = 5 + 6 = 11.
  2. Multiply this by C: 11 x 3 = 33.
  3. Subtract B from this result: 33 - 6 = 27.
  4. Compare 27 to the key: D = 27, so D matches.
  5. Final answer: D (value 27).

Practice questions

Type your answer and press Check to be marked straight away, or reveal the answer and mark yourself.

Q1F=3, G=7, H=2, J=17, K=20. Work out F + G x H. Which letter has this value?Show answer

Answer: J (multiply first: G x H = 7 x 2 = 14, then F + 14 = 3 + 14 = 17, and J = 17)

Got it right?
Q2F=10, G=4, H=3, J=18, K=22. Work out F + (G x H). Which letter has this value?Show answer

Answer: K (brackets first: G x H = 4 x 3 = 12, then F + 12 = 10 + 12 = 22, and K = 22)

Got it right?
Q3L=8, M=3, N=5, P=10, Q=25. Work out (L - M) x N. Which letter has this value?Show answer

Answer: Q (brackets first: L - M = 8 - 3 = 5, then 5 x N = 5 x 5 = 25, and Q = 25)

Got it right?
Q4L=5, M=6, N=3, P=23, Q=33. Work out L + M x N. Which letter has this value?Show answer

Answer: P (multiply first: M x N = 6 x 3 = 18, then L + 18 = 5 + 18 = 23, and P = 23)

Got it right?
Q5R=6, S=2, T=5, U=38, V=40. Work out (R + S) x T - S. Which letter has this value?Show answer

Answer: U (brackets first: R + S = 6 + 2 = 8, then 8 x T = 8 x 5 = 40, then 40 - S = 40 - 2 = 38, and U = 38)

Got it right?
Q6W=8, X=5, Y=3, Z=37, A=40. Work out (W x X) - Y. Which letter has this value?Show answer

Answer: Z (multiply first: W x X = 8 x 5 = 40, then 40 - Y = 40 - 3 = 37, and Z = 37)

Got it right?

Exam-style questions

Written in the style of a 11+ exam paper, with a full mark scheme.

Q1[2 marks]

K=6, L=4, M=3, N=18, P=30. Work out K + L x M. Which letter has this value? Show your working.

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Q2[3 marks]

F=7, G=4, H=5, J=47, K=8. Work out (F + G) x H - K. Which letter has this value? Show your working.

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Q3[4 marks]

F=6, G=4, H=7, J=5, K=50. Work out (F + G) x H - J x G. Which letter has this value? Show your working.

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Free printable worksheet

Want more practice on paper? Download the letters for numbers: practice set 2 worksheet pack - 9 pages of exam-style questions with a full mark scheme. One email opens every download in this browser for 14 days - no account, no card. Print it for personal and classroom use.

This topic is chapter 9 of 11+ Verbal Reasoning Workbook 2, the whole course as one free printable PDF.

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