Numerical reasoning tests are the most common aptitude assessment used by employers worldwide. Over 10,000 companies use tests from providers like SHL, Kenexa, and Cubiks — and the numerical section is almost always included.
The good news: numerical reasoning isn't maths. You don't need algebra, calculus, or advanced equations. It's about reading data, understanding what's being asked, and calculating quickly under pressure.
Every numerical reasoning test evaluates three core skills: data interpretation (reading tables, charts, and graphs correctly), calculation speed (percentages, ratios, averages, currency conversions), and logical application (knowing which operation to use when). Companies like Deloitte, Barclays, and JP Morgan use these tests because they predict job performance in roles that involve analysing data, budgets, and reports.
These appear in almost every numerical test. You'll see questions like "What was the percentage increase in revenue from Q1 to Q2?" or "If costs decreased by 15%, what is the new total?" The key skill is identifying the base number. Percentage increase = (new - old) / old × 100. Percentage of a number = number × percentage / 100. Practice these until they're automatic.
You'll be presented with a data table — typically 4-6 columns and 5-8 rows — and asked to extract, compare, or calculate from the data. The trick is reading the column headers and units carefully. A common trap: the table shows figures in "£ thousands" but the answer options are in actual pounds.
Bar charts, line graphs, pie charts, and sometimes combinations. For bar charts, read the axis scales carefully — they don't always start at zero. For pie charts, remember that 25% = 90 degrees. For line graphs, look at the trend direction and any inflection points.
Questions like "If 3 machines produce 450 units in 6 hours, how many units do 5 machines produce in 8 hours?" The key: break it into steps. Find the rate per machine per hour first, then scale up.
Common in banking and finance assessments at firms like Goldman Sachs, HSBC, and Deutsche Bank. You'll convert between currencies using given exchange rates, calculate profit margins, or work out commission percentages.
In an SHL numerical reasoning test, you get approximately 35-40 seconds per question. That's not much time to read a data table, understand the question, calculate, and select your answer. Here's how to manage it:
Read the question first, then the data. Don't spend 20 seconds studying the table before you know what's being asked. The question tells you which row and column to look at.
Use the answer options. If the options are 12%, 15%, 18%, and 24%, and your rough calculation gives you something around 15%, you don't need to calculate to three decimal places. Estimation is faster than precision.
Skip and return. If a question is taking more than 60 seconds, mark your best guess and move on. One hard question isn't worth three easy ones.
Misreading units. The table says "millions" but you calculate in thousands. Or the chart axis is in percentages but you treat them as absolute numbers. Always check the units before calculating.
Using the wrong base number. "What percentage of total sales came from Region A?" requires dividing Region A's sales by the TOTAL, not by another region. It sounds obvious, but under time pressure people grab the wrong number.
Rounding too early. If you round intermediate calculations, errors compound. Keep full precision until the final step, then round to match the answer options.
TestSolve uses a specialised quantitative engine that reads the data from your screen, identifies the question type, and runs the calculation through a deterministic Python calculator — not the AI's internal maths. This means the calculation is always correct, regardless of complexity. The AI reads the numbers; Python does the maths. Current accuracy on numerical reasoning: 94%.
The answer appears on your phone in a few seconds, with a full explanation showing every step of the calculation. Try a free solve.
The best way to improve is timed practice. Here are reliable sources:
SHL's own practice tests at SHL Direct give you the exact format you'll face. JobTestPrep offers employer-specific practice packs. AssessmentDay has free numerical tests with worked solutions. For Cognizant, Wipro, and TCS candidates in India, the AMCAT practice portal provides format-specific preparation.
As of 2026, numerical reasoning tests have evolved to better assess candidates' analytical and data interpretation skills. For instance, Clevry's Numerical Reasoning Test now comprises 16 questions to be completed within 15 minutes, with an average completion time of 13 minutes. This format is designed to evaluate a candidate's ability to interpret numbers, perform calculations, and work with numerical data in various forms. ([clevry.com](https://www.clevry.com/en_us/platform/assessments/numerical-reasoning-test/?utm_source=openai))
Recent candidate experiences highlight the importance of understanding the specific test formats used by different employers. For example, Morgan Stanley's numerical reasoning test is tailored to assess the ability to interpret and analyze complex financial data, reflecting the high-stakes nature of roles within the investment banking sector. ([aptitudeprep.com](https://www.aptitudeprep.com/morgan-stanley-numerical-reasoning-test?utm_source=openai))
Employers are increasingly integrating numerical reasoning tests into their recruitment processes to objectively measure candidates' abilities to handle data-driven decision-making. These assessments focus on the application of logic rather than simple mental arithmetic, aligning with the analytical demands of modern roles. ([compono.com](https://www.compono.com/articles/numerical-reasoning-test-guide-smarter-hiring?utm_source=openai))
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