Quick-Fire Math, also called Bubble Math, is one of the games students often report in Accenture’s game-based online assessment. Three bubbles appear on the screen. Each bubble holds a number or a small calculation. Your job is to tap the bubbles in order from the lowest value to the highest value before a short timer runs out.
This page gives you a free, ready-to-play practice version with three difficulty levels. Below the game you will find the rules in plain English, an explanation of every part of the screen, the types of questions to expect, and speed techniques that help you compare values quickly and accurately.
In this post
- What is Quick-Fire Math (Bubble Math)?
- Read this first: the 6 rules
- Play the free practice game
- Step-by-step game instructions
- The three practice variants
- Types of questions you will see
- Speed techniques that really help
- Common mistakes to avoid
- A 7-day practice plan
- About the Accenture gamified round
- Frequently asked questions
What is Quick-Fire Math (Bubble Math)?
It is a short mental maths game. Every question shows three bubbles. A bubble might contain a plain number such as 7, or an expression such as 4 × 2 or 12 − 9. You do not type anything. You only tap.
The game tests number sense, calculation speed and accuracy under time pressure. It is not about advanced maths. Most questions use only addition, subtraction, multiplication, division and simple fractions, decimals or percentages. What makes it tricky is the clock: you have only a few seconds per question, and the questions become harder as you go.
Read this first: the 6 rules
- Each question shows three bubbles. Work out the value of each one.
- Tap the bubbles in order from the lowest value to the highest value. Your first tap should be the smallest, your last tap the largest.
- If you tap a wrong bubble by mistake, tap it again to undo it. This works only before you tap the third bubble.
- As soon as you tap the third bubble, the game moves to the next question automatically. You cannot go back, so check your order before the last tap.
- Each question has 15 seconds. The circle shows the seconds left. When it reaches zero, you move on and that question counts as unanswered.
- A practice round has 25 questions, and they get harder as the round goes on.
Play the free Accenture Quick-Fire Math practice
Choose a variant, press START and tap the bubbles from lowest to highest. On a laptop you can also press the keys 1, 2 and 3 to pick the left, right and bottom bubbles. A results page with a full answer review appears after question 25.
Step-by-step game instructions
- Choose a variant. Tap Speed Techniques, Bubble Math Practice 2 or Bubble Math Practice 3. Start with the first one if you are new.
- Read the start screen. It tells you the number of questions (25), the time per question (15 seconds) and the direction to sort in (lowest to highest). Open “5 quick speed techniques” for a short reminder.
- Press START. Question 1 appears and the 15-second timer begins at once.
- Read all three bubbles. Find the smallest value and the largest value. The middle value is the one left over.
- Tap in order. Tap the smallest bubble first. A small number badge (1, 2, 3) shows the order you have chosen.
- Undo if needed. Tap a selected bubble again to remove it, then choose the right one.
- Tap the third bubble. The game moves on by itself. In Learning mode you first see the correct answer for a moment (green means correct, red means wrong).
- Keep going to question 25. If the timer reaches zero, you skip to the next question.
- Read your results. You see your score, accuracy, average time per question and a table with every question, the correct order and your order.
What each part of the practice screen means
| Part of the screen | What it shows |
|---|---|
| Three bubbles | The numbers or expressions you must put in order. |
| Number badge on a bubble | The order in which you selected it (1 = first pick, which should be the lowest). |
| Circle with a number | Seconds left for the current question. It turns yellow at 6 seconds and red at 3 seconds. |
| “Question 7 / 25” | Your position in the round, with a purple progress bar underneath. |
| Learning mode | Shows the correct answer and the value of each bubble after every question. Switch it off for test-like practice. |
| Restart with new questions | Starts a fresh set of 25 questions in the same variant. |
The three practice variants
| Variant | Difficulty | What you will see |
|---|---|---|
| Speed Techniques (Practice 1) | Easy to medium | Whole numbers, simple sums and differences, times tables and a few bigger numbers near the end. |
| Bubble Math Practice 2 | Medium | Two-digit sums, division, brackets and two-step expressions such as 8 × 6 + 9. |
| Bubble Math Practice 3 | Harder | Fractions, decimals, percentages, negative numbers and squares mixed with normal expressions. |
In every variant the first few questions are easy and the difficulty rises as you continue. Each time you press “Play again” you get a new random set, so you cannot memorise the answers. You practise the skill instead.
Types of questions you will see
| Type | Example bubble | Value |
|---|---|---|
| Plain number | 7 | 7 |
| Addition | 3 + 6 | 9 |
| Subtraction | 15 − 8 | 7 |
| Multiplication | 4 × 2 | 8 |
| Division | 36 ÷ 4 | 9 |
| Two steps or brackets | (5 + 3) × 2 | 16 |
| Fraction | 3/4 | 0.75 |
| Decimal | 2.5 × 4 | 10 |
| Percentage | 25% of 80 | 20 |
| Negative number | −4 × 2 | −8 |
| Square | 12² | 144 |
Three worked examples
Example 1. Bubbles: 4 × 2, 7, 3 + 6. The values are 8, 7 and 9. Correct order: 7, then 4 × 2, then 3 + 6.
Example 2. Bubbles: 3/4, 0.6, −2 + 3. The values are 0.75, 0.6 and 1. Correct order: 0.6, then 3/4, then −2 + 3.
Example 3. Bubbles: −4 × 2, −3, 5 − 9. The values are −8, −3 and −4. Correct order: −4 × 2, then 5 − 9, then −3. With negative numbers, the number further from zero is the smaller one.
Speed techniques that really help
- Estimate before you calculate. If the bubbles are roughly 5, 40 and 90, you do not need exact values. Only calculate carefully when two values are close.
- Find the extremes first. Pick the smallest and the largest bubble. The middle one is then decided automatically, which saves a few seconds.
- Use the negative rule. Any negative number is smaller than any positive number and smaller than zero. A quick look at the minus signs can decide the first pick at once.
- Use benchmarks for fractions. Compare a fraction with 1/2 and 1. For example, 5/8 is a little more than half, and 7/6 is more than one.
- Follow BODMAS. Brackets first, then powers, then multiplication and division, then addition and subtraction. For example, 6 + 4 × 3 is 18, not 30.
- Learn squares and tables. Knowing 12 × 12, 13², 14² and 15² instantly saves real time in harder questions.
- Use percentage shortcuts. 10% means divide by 10. 5% is half of 10%. 25% means divide by 4. 75% is three times 25%.
- Do not get stuck. If one bubble takes too long, make your best pick. A wrong answer costs one question, but a frozen timer costs the same and teaches you nothing.
Common fractions as decimals
| Fraction | Decimal | Fraction | Decimal |
|---|---|---|---|
| 1/2 | 0.5 | 1/8 | 0.125 |
| 1/3 | 0.333… | 3/8 | 0.375 |
| 2/3 | 0.667… | 5/8 | 0.625 |
| 1/4 | 0.25 | 1/5 | 0.2 |
| 3/4 | 0.75 | 1/10 | 0.1 |
Squares worth remembering
11² = 121, 12² = 144, 13² = 169, 14² = 196, 15² = 225.
Common mistakes to avoid
- Tapping from highest to lowest by habit. Always read the direction shown under the timer.
- Tapping the third bubble too quickly. The game moves on immediately and you cannot change your answer.
- Ignoring the order of operations, especially in expressions such as 5 + 2 × 6.
- Forgetting that −8 is smaller than −3.
- Comparing fractions by looking only at the bigger denominator instead of finding the decimal value.
- Spending 15 seconds on one hard question. Speed and accuracy both matter.
A 7-day practice plan
| Day | What to do |
|---|---|
| Day 1 | Play Speed Techniques once with Learning mode on. Read the review table at the end. |
| Day 2 | Play Speed Techniques twice. Try to beat your score from Day 1. |
| Day 3 | Learn the fraction and squares tables above. Play Practice 2 once. |
| Day 4 | Play Practice 2 twice with Learning mode off. |
| Day 5 | Play Practice 3 once and study every question you got wrong. |
| Day 6 | Play one round of each variant with Learning mode off, like a real test. |
| Day 7 | Light revision of the techniques, one easy round, then rest well. |
Do not compare your score with other people, because every round is random. Compare yourself with your own scores from earlier days.
About the Accenture gamified round
Some Accenture hiring drives use game-based tasks in the online assessment instead of, or along with, traditional aptitude questions. Candidates commonly describe a bubble maths game, a maze or path task and a memory task. The names, order, timers and number of questions can differ between countries, roles and hiring drives.
Your best source of truth is the official email and the instructions inside your own assessment, along with any official mock test Accenture provides. Please be careful with fake job offers and with anyone asking for money in return for “leaked games” or guaranteed selection. Apply only through the official Accenture careers website.
Frequently asked questions
Is this the real Accenture game?
No. It is an independent practice tool built to help students get used to this style of question. The real test may look and behave differently.
Do I have to type the answers?
No. You only tap the bubbles in order from the lowest to the highest value.
Can I change my answer?
Yes, but only before you tap the third bubble. Tap a selected bubble again to undo it. After the third bubble, the game moves to the next question automatically.
What happens if the 15 seconds end?
You move to the next question, and the unanswered question counts as wrong in this practice tool.
Are the questions the same every time?
No. Every round is generated randomly, so you cannot memorise answers. This builds real calculation speed.
Is calculator use allowed?
Follow the rules in your own test. This game is designed for mental maths, so practise without a calculator.
Does it work on a mobile phone?
Yes. Tap the bubbles with your finger. On a laptop you can also press 1, 2 or 3.
Is it free? Do I need to log in?
It is completely free and needs no login or sign-up.
Are my scores saved?
No. The game runs in your browser only and does not store or send your results.
How can I get faster?
Learn your tables, squares and fraction decimals, estimate before calculating and find the smallest and largest bubbles first. See the speed techniques section above.
Last updated: 20 September 2026