ENAC Mental Calculation
IntellectualPSY1Four series of ten boards, back to back, each on its own clock. You type the result of a chain of additions and subtractions, type the value of the last letter in a small system, choose the narrowest of 10 intervals that holds a result, then tick every one of 7 intervals that does. On the ENAC EPL form, every chain in the first series ends on a multiplication and each series gets 4 minutes. On the Air France Cadets form, the first series is sums only and each series gets 6 minutes.
Overview
The four series run as one exercise, so each new task turns up without warning. Know all four by sight before you start. On CM3, a slip in A carries through every line after it, so check A before you use it.
Assessments
Part of the ENAC EPL selection (PSY1) battery as “Calcul mental 1, 2, 3, 4”.
One test sat as four series thrown back to back with nothing between them (no pause, no instructions), ten items each on a roughly four-minute clock. Free answer, where the chain usually closes on a product of two two-digit numbers; equations, where three letters are carried from line to line and where scores collapse; then chains of plain sums answered by interval, the intervals less tight than the trainers' and a few wide enough to rule out at a glance.
Part of the Air France Cadets selection at ENAC (PSY1) battery as “Calcul mental”.
The same four series close the Cadets afternoon, just before the psychomotor test, each on its own clock and with a first series of sums only, and the two middle series, the equations and the smallest interval, are where the room loses its marks.
Battery mappings are based on public information and may change.
Four series, one after the other
- CM1 gives you a chain of additions and subtractions. You type the result.
- CM3 gives you a few lines, each working out a letter, with the later lines using the letters above them. You type the value of the last letter.
- CM2 gives a chain and 10 intervals. You choose the narrowest interval that holds the result.
- CM4 gives a chain and 7 intervals. You tick every interval that holds the result, or No interval if none does.
One board from each series
Answer the board, then hit Show the working. CM1 gets two boards because the two selections differ there: the ENAC EPL chain ends on a multiplication.
Type the result of the calculation.
Game Phases
Tens, Then Units
Add the tens of every number, then the units, then put the two together.
Rule Out First
Cross off the intervals that clearly miss the result before you work out a single width.
One Number in the Box
Working in the box is fine, but replace it with your answer before you move on.
Keep Moving
Each series has its own clock. If a board won't crack, leave it and come back if there's time left.
More Practice
Mental Math
14 exercisesMath: Full
A mixed practice test combining all math categories — integers, decimals, fractions, time, weight, operators, and percentages — with a per-question timer.
Math: Decimals
Solve decimal arithmetic problems — addition, subtraction, multiplication and division with decimal numbers.
Math: Fractions
Solve fraction arithmetic problems — addition, subtraction, multiplication and division of fractions.
Math: Integers
Solve integer arithmetic problems — addition, subtraction, multiplication, and division.
Math: Operators
Find the two operators that make the fraction equal the target value.
Math: Percentages
Solve percentage problems — find the percentage or the whole number given the other two values.
Math: Time
Add or subtract two times expressed in hours, minutes, and seconds.
Math: Weight
Add or subtract two weights expressed in kilograms and grams.
Equation Completion
Fill each equation's gaps with digit tiles 1 to 9, each usable once, so the given result is correct. The faithful cut-e (Aon scales eql) digit entry format, plus our multiple choice practice variant.
Data Interpretation
Read data from a chart or table — bar, line, pie or table — and answer a numerical question or judge a statement True, False or Cannot Say, one item at a time against the clock. Play with a single chart per question, or the cut-e-realistic tabbed workbook where finding the right dataset is part of the task.
Speed, Distance & Time
Solve speed–distance–time word problems in an aviation setting — ground speed, distance to run, ETA and fuel burn — applying distance = speed × time to find the missing variable, mentally and against the clock.
Audio Math Test
Mental arithmetic you hear instead of read: each question is narrated once in your headphones, and the answer clock only starts when the voice stops.
ENAC Mathématiques
Thirty word problems on percentages, speeds, work rates, shapes and clocks, with a pen and paper but no calculator. You type most answers as a number and pick a few from five. The exam format is 30 problems in 35 minutes.
ENAC Calculation Grids
A board of 9 complete calculations, three by three. Some of them are false. Click the false ones, then validate before the bar runs out. A board holds anywhere from none to 4 false ones. The exam format is 8 boards with 40 seconds each.