Basic Mental Math
Use your mental math skills to build the tallest, most incredible ice cream sundae possible! Play against the computer or headtohead versus other students from around the world.
Instructions
Game Goals
In this maths game you race against two rival players to build the tallest, most incredible ice cream sundae possible!
The game tests your mental maths skills, challenging you with a range of addition, subtraction, multiplication and division problems.
Each problem answered correctly earns you a fresh scoop of delicious ice cream, but mistakes lose you time – so think carefully, because those precious few seconds could cost you the race!
How To Play
On the main title screen, you can choose to play either Solo or Multiplayer:
 Solo: In this mode you race against two computer rivals. Choose from one of 12 levels ranging from ‘Adding up to 10’ to ‘Multiplying & dividing by up to 5’.
 Multiplayer: In this mode you race online against other students from around the world, tackling a random mix of problems from adding & subtracting up to 20 and multiplying & dividing up to 5.
Once you’ve made your choices, prepare to race!
Sundae bowls are shown at the bottom of the screen, with your bowl in the middle and those of your rivals to the left and the right.
Mental maths problems appear at the top of the screen. If you answer a problem correctly, you earn a scoop of ice cream and your sundae grows taller. If you answer a problem incorrectly, the scoop falls past your bowl and has to be cleaned up – during this time you cannot answer a new problem, giving your rivals the chance to pull ahead.
Every 8 scoops you pass a ‘?’ icon, which randomly awards you a powerup that can either help you or hinder your rivals. Clever use of powerups at the right time can mean the difference between winning and losing!
When time runs out, the heights of the sundaes are calculated and then Gold, Silver or Bronze Stars are awarded according to final position, numbers of problems answered correctly, and accuracy.
Game Controls
Use the keyboard to enter your answers. If you prefer you can access an onscreen input by clicking the button in the topright of the screen. Note that in Full Screen mode, the keyboard is disabled.
When you collect a powerup, activate it by clicking the icon or pressing SPACE. Attack powerups automatically target your most threatening rival, leaving you free to concentrate on problem solving. Be sure to use powerups before they disappear offscreen, or you’ll lose them forever!
If a rival targets you with the SquirtSquirt Cream or Frozen Desserts powerups, rapidly click the mouse button or tap ENTER to eradicate their effects more quickly.
After each race you are given a rating based on how well you played. Use the performance readout to spot where your weak spots are so you can do better next time!
PowerUps
There are 11 powerups in total. Here’s the lowdown on what they do once activated (by either clicking the icon or pressing SPACE): Bonus Scoop(s)
 Awards you with extra ice cream. There are three varieties of this tasty treat: single scoop, double scoop, and triple scoop.
 Chilli Sauce Splat
 Squirts blazing hot spicy relish over one of your rivals’ sundaes, robbing them of a precious ice cream scoop.
 Extra Helpings
 Awards you TWO ice cream scoops for every problem answered correctly. It only lasts for a short time, so make good use of it! Also, this powerup is lost if you enter an incorrect answer.
 Frozen Desserts
 Freezes rivals’ inputs and prevents them from entering answers. If you fall victim to its chilly grasp, rapidly click the mouse or tap ENTER to shatter the ice more quickly.
 Hungry Hound
 Unleashes a ravenous sweettoothed mutt who homes in on the tallest sundae and wolfs down a whole stack of ice cream scoops. Down, boy!
 Scooper Stealer
 Steals an ice cream scoop from one of your rivals and adds it to the top of your sundae.
 SquirtSquirt Cream
 Covers one of your rivals’ inputs in fluffy white cream. If you get attacked by this sticky threat, rapidly click the mouse or tap ENTER to shake off the cream more quickly.
 Shield
 Protects your sundae from any powerup attack. It only lasts for a short time, so make sure you activate it at the right moment.
 Wasp Swarm
 Releases a swarm of hungry insects who just love ice cream. As they sweep across the screen, they steal three ice cream scoops from each of your rivals.
Scoring
At the end of each race you are awarded a ‘performance rating’ out of 10. This rating is based on your final position (1st, 2nd or 3rd), the number of problems answered correctly, and your accuracy.
If your rating is high enough you win Gold, Silver or Bronze Stars, which are then converted into points and added to your overall score. This table shows you what you need to achieve to earn each Star type and what they’re worth:
Star Type  Rating Needed  Rating Requirements  Score  

Position  Correct Answers  Accuracy  
Gold  9.00 or higher  1^{st}  40 or more  100%  50 points 
Silver  8.00 or higher  1^{st} or 2^{nd}  30 or more  95% or higher  20 points 
Bronze  7.00 or higher  Any  20 or more  90% or higher  5 points 
In Solo mode, Stars are ‘one time only’ awards – i.e. if you race the same level multiple times, you only earn points the first time you get a Star. In addition, if you win a better Star than before, your score is boosted by the points difference only.
 EXAMPLE:

You enter Solo mode and play the 'Adding up to 20' level for the very first time. At the end of the race your performance earns you a Bronze Star, so you receive 5 points towards your score.
You race the 'Adding up to 20' level once more, and again you earn a Bronze Star. As you already won a Bronze Star for this level, your score is not increased.
You race the 'Adding up to 20' level a third time and do much better; this time you earn a Gold Star! Although Gold Stars are worth 50 points you already won 5 points from your Bronze Star, so your score is increased by 45 points.
In Multiplayer mode, you can win points each time you race – assuming your performance is good enough to earn a Star, of course!
As your score increases, so does your Rank. There are 10 different Ranks; what’s the highest Rank you can reach?
Improve your score
Basic Strategies
 Some players find it quicker to use the keypad rather than the keyboard – try both to see which feels more comfortable.
 If a rival hits you with the SquirtSquirt Cream or Frozen Desserts powerup, as soon as the powerup takes effect start clicking the mouse button or tapping ENTER rapidly.
 If you have an ‘attack’ powerup (Chilli Sauce Splat, Frozen Desserts, Hungry Hound, Scooper Stealer, SquirtSquirt Cream) and either of your rivals have Shields active, wait until they expire before unleashing it.
 When you’re in the lead, you become a target for everyone! If you have a Shield powerup, wait to activate it until your rivals are just about to collect powerups of their own – this ensures you get maximum protection from it.
 In Solo mode, there is a maximum limit to how many points you can score. As there are 12 different levels, the best you can achieve is Gold Stars in each, i.e. 12 × 100 = 1,200 points. If you want to get a high Rank, then Multiplayer is the place to be – each race has the potential to earn you a new Gold Star!
Math Strategies
 Adding small numbers together

Start with the bigger number and then keep counting on with the other number.
For example: if you were working out 7 + 4 you could start with 7 and then add on 4 by counting from 7: 7, 8, 9, 10, 11 So, 7 + 4 = 11
 Adding tens and one together

Start by adding the tens and then add the ones.
For example: if you were working out 26 + 31 you could start with 20 + 30 and then work out 6 + 1. 20 + 30 = 50 and 6 + 1 = 7 Now add 50 and 7 together. So, 26 + 31 = 57
 Subtracting small numbers

You can do this by counting backwards.
For example: if you were working out 12 − 4 you could start with 12 and then count 4 more backwards: 12, 11, 10, 9, 8 So, 12 − 4 = 8
 Subtracting with tens and ones

One way to do this is to count back up.
For example: if you were working out 40 − 26 you could count up from 26 to make 40. Start with 26, add 4 to make 30. Starting from 30, add 10 to make 40. All together you added 14. So, 40 − 26 = 14
 Swapping numbers around when you multiply

If you see a times tables question that you find hard, you might find it easier to work out if you think of the two numbers the other way around.
For example: 5 × 2 means "five groups of two" or "2 + 2 + 2 + 2 + 2". But if you work out 2 × 5 you get the same answer. 2 × 5 means “two groups of five” or “5 + 5”. You might find it easier to work out 5 + 5 = 10
 Multiplying by 0

When you multiply a number by ZERO, the answer is always ZERO.
For example: if you were working out 0 × 3 or 5 × 0 you get the answer ZERO. 0 × 3 = 0 and 5 × 0 = 0
 Multiplying by 1

When you multiply a number by 1, this is really just saying “What is one group of the number?”
For example: if you were working out 1 × 3 or 3 × 1 this means “What is one group of three?” The answer is just 3. 1 × 3 = 3 and 3 × 1 = 3
 Multiplying by 2

When you multiply a number by 2, it is the same as doubling the number. Sometimes it’s easier to think of doubling a number than timesing it by 2.
For example: if you were working out 4 × 2 or 2 × 4 this would be the same as doubling 4.
When you multiply a number by 2, you might find it easier to work out the answer by adding.For example: work out 2 × 3. This can be worked out by adding 3 to 3. So, 3 + 3 = 6
 Multiplying by 3

When you multiply a number by 3, you might find it easier to work out the answer by adding.
For example: work out 3 × 5. This can be worked out as 5 + 5 + 5 = 15
 Multiplying by 4

When you multiply a number by 4, it is the same as doubling the number and then doubling again. Sometimes it’s easier to think of doubling a number than timesing it by 4.
For example: if you were working out 3 × 4 this would be the same as doubling 3 and then doubling again. So double 3 to get 6. Then double 6 to get 12. So, 3 × 4 = 12
 Multiplying by 5

When you multiply a number by 5 you might find it helpful to count quickly in fives.
For example: to work out 3 × 5 you can count in fives to get: 5, 10, 15. So the answer is 15.
 Dividing by 1

When you divide a number by 1, you get just the same number.
For example: if you were working out 7 ÷ 1 you get just the answer 7. So, 7 ÷ 1 = 7
 Dividing by 2

When you divide a number by 2, it is the same as halving the number. Sometimes it’s easier to think of halving a number than dividing it by 2.
For example: if you were working out 10 ÷ 2 this would be the same as halving 10. So, 10 ÷ 2 = 5 and half of 10 is 5
 Dividing by 3

When you divide a number by 3, it means “How many 3s go into the number?” You can work out the answer by counting in 3s.
For example: if you were working out 12 ÷ 3 you could count in 3s: 3, 6, 9, 12 This means that the answer is 4. So, 12 ÷ 3 = 4
 Dividing by 4

When you divide a number by 4, it means “How many 4s go into the number?” You can work out the answer by counting in 4s.
For example: if you were working out 12 ÷ 4 you could count in 4s: 4, 8, 12 This means that the answer is 3. So, 12 ÷ 4 = 3
 Dividing by 5

When you divide a number by 5, it means “How many 5s go into the number?” You can work out the answer by counting in 5s.
For example: if you were working out 20 ÷ 5 you could count in 5s: 5, 10, 15, 20 This means that the answer is 4. So, 20 ÷ 5 = 4