Build fast, accurate mental arithmetic for SHL’s calculation tests. Fill in missing numbers, find incorrect equations and order operations in number chains.
View your results and progress4 short drills · 10-minute adaptive test · 18-second speed test · Worked answers
Example · Missing number
Work out the missing number, then type it in.
Whole numbers or decimals. Press Enter to submit.
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Match the name on your assessment invitation.
Each question is a short equation with one number replaced by “?”. SHL shows the equation for a set time, then moves you to a screen where you type the missing value; that screen is timed too. SHL says Verify Calculation measures how quickly and accurately you add, subtract, divide and manipulate numbers, for entry-level, administrative, clerical and apprenticeship roles. Its online store lists a completion time of 15 minutes.
An adaptive test with up to 12 questions in 10 minutes. SHL’s examples include marking the incorrect equations in a set and dragging operations into order to get from one number to another. SHL describes it as suited to entry-level jobs that need simple calculations done quickly and accurately.
SHL’s Numerical Calculation fact sheetUntimed, with a worked answer after each question. Each drill has its own trial where your access includes one; an SHL Numerical pass covers every replay.
Find the number that completes each equation, from number facts to decimals, percentages and fractions.
Check five equations and mark every one that is wrong, the way you would audit someone else’s figures.
Choose operations in the right order to turn the top number into the bottom number.
All three question types in one short set, getting harder as you go.
SHL’s published length for Verify Interactive – Numerical Calculation. All three question types; each answer moves the next question one level up or down. Review everything at the end.
Twenty missing-number equations, each on its own clock, from number facts to percentages. Build speed at our 18-second pace.
No account needed. Answer, then see the worked solution.
Example · Spot the incorrect equations
Select every incorrect equation. At least one is wrong.
For ? − 17 = 45, add 17 back: ? = 62. For ? ÷ 6 = 14, multiply: ? = 84. Reversing one step is faster than trial and error.
In 15 + 7 × ? = 50, the multiplication happens first: 7 × ? = 35, so ? = 5. Work brackets before anything else.
If 18 × 8 is shown as 143, the product must end in 4, because 8 × 8 = 64. If 219 + 308 is shown as 427, rounding to 200 + 300 shows it is about 100 short.
25% is a quarter and 75% is three quarters. Dividing by 0.5 doubles a number, and dividing by 0.25 multiplies it by 4.
Ask which tile could produce the final number. A target of 56 after “× 8” means the number before it was 7.
SHL’s calculation tests measure how quickly and accurately you work with numbers. In the missing-number format on SHL’s calculation example page, each question is a short equation with one number replaced by “?”, and you type the missing value. SHL’s fact sheet for Verify Interactive – Numerical Calculation shows two interactive tasks: marking the incorrect equations in a set and ordering operations to get from one number to another.
SHL’s fact sheet gives Verify Interactive – Numerical Calculation a 10-minute limit and a maximum of 12 questions in one sitting. SHL’s online store lists a completion time of 15 minutes for Verify Calculation, where each equation is shown for a set time and the answer screen has its own time limit. Our timed test uses 12 questions in 10 minutes, and our own speed test gives each equation 18 seconds.
SHL lists Verify Calculation for entry-level, administrative and clerical roles and apprenticeship schemes, and for any role that involves calculation and estimation or checking other people’s numerical work. It describes Numerical Calculation as suited to entry-level jobs that need simple calculations done quickly and accurately.
SHL’s fact sheet describes Verify Interactive – Numerical Calculation as adaptive, so the questions you see depend on your earlier answers. SHL’s missing-number calculation pages do not say whether that format adapts. Our timed test adapts: after a correct answer the next question is one level harder, and after a wrong or missed answer it is one level easier.
Yes, unless your invitation says otherwise. SHL’s candidate support says you may use a calculator on a numerical or calculation test unless you have been instructed otherwise, and suggests keeping paper and a pencil nearby. SHL times each missing-number equation and its answer screen, so quick mental arithmetic still saves time. Our practice has no on-screen calculator, and every worked answer shows the mental steps.
The worked examples on this page are free without an account. Each of the four short drills has its own trial where your access includes one. The 10-minute timed test and the speed test need a practice pass. One SHL Numerical pass covers SHL Calculation practice and SHL Numerical Interactive practice. Saved answers and explanations stay free.
No. Every question is original, generated for practice with a worked answer. The formats follow SHL’s published descriptions; the questions, difficulty levels and scoring are our own. Game Assessment Prep is not affiliated with SHL.
SHL’s numerical reasoning tests work from business tables and charts, in an interactive or a multiple-choice format. Check the test name in your invitation.
Independent preparation, not affiliated with or endorsed by SHL. Practice results are not SHL scores or employer pass predictions.