Civil Service Numerical Test study guide
Civil Service Numerical Test · Work through your exam, one topic at a time.
The Civil Service Numerical Test is the numerical-reasoning stage of civil-service recruitment: a timed, multiple-choice assessment of how quickly and accurately you can extract numbers from tables, charts and short written scenarios and turn them into a decision. It is used for administrative, statistical, finance and policy-support posts where the role calls for routine numerical judgement. The Civil Service Numerical Test study guide has 7 sections and about 1,957 words.
01Basic Number Operations and Arithmetic Fluency
Arithmetic questions reward candidates who see numbers as relationships. Secure the order of operations (brackets, indices, multiplication and division left to right, addition and subtraction left to right), integer rules for negatives, and fluent conversion among fractions, decimals and percentages.
293 words, about 1 min02Data Interpretation from Tables, Charts and Graphs
Data interpretation is a locating task before it is a calculating task. Read the title, then the units, then the row and column headings.
282 words, about 1 min03Percentages, Ratios and Proportional Reasoning
Percentages, ratios and proportion are the same idea in different clothing: a multiplicative comparison to a base. For percentages, distinguish “find a percentage of a number”, “express one number as a percentage of another”, and “reverse a percentage change”.
273 words, about 1 min04Averages, Rates and Unit Conversions
The mean is a total divided by a count; the median is the middle value of an ordered list; the mode is the most frequent; the range is largest minus smallest. When groups of different sizes are combined, use a weighted mean: multiply each group mean by its size, add, then divide by the total size.
284 words, about 1 min05Quantitative Word Problems and Applied Reasoning
Word problems test whether you can turn prose into arithmetic. Underline the quantity asked for, list the given quantities with their units, and assign a letter to the unknown.
261 words, about 1 min06Financial and Budgetary Calculations
Budget questions combine percentages, rates and careful reading of tax and discount conventions. Distinguish gross (before deductions) from net (after deductions), cost from selling price, and markup from margin.
287 words, about 1 min07Estimation and Approximation Under Time Pressure
Estimation is a decision tool. Round each number to one or two significant figures, use compatible numbers that divide neatly, and keep track of order of magnitude.
277 words, about 1 min