x + y
=
Value of the question: ?
😎 Operations with whole numbers
Play this game for 5 minutes a day to master all 4 operations with whole numbers and the rules for positive and negative numbers.
☘
☘
☘
The laws of the game.
There are 10 levels of difficulty. I have programmed this thinking that reaching level 6 is very difficult and reaching level 8 is practically impossible. Superior levels are reserved for superhuman subjects, extraterrestrials, geniuses or cheaters. Since there are, I've included levels 9 and 10. They are completely out of my league. But there are people out there who never cease to amaze me.
You start with 50 seconds, but every time you level up you get a bonus of 5 additional seconds. At level 8 you stop receiving that bonus. The bonus is only for humans.
Each hit scores twice:
- Depending on the complexity of the account itself. For example, (-7) ⨉ (-5) gives 14 points but 8 ⨉ 0 gives only 1 additional point.
- According to the level according to the table below.
If you fail, you lose those points :(
| Level | Points | Added difficulty |
|---|---|---|
| 0 | 0 | Numbers between 0 and 5 |
| 1 | 10 | |
| 2 | 30 | Numbers between 0 and 8 |
| 3 | 60 | The 0 no longer appears in the accounts. Numbers between 6 and 10. |
| 4 | 100 | Two-digit numbers begin to appear. However, you will no longer encounter the 10. |
| 5 | 150 | Small numbers such as 3 or 4 appear again. However, 13, 14 and 15 can also appear.< /td> |
| 6 | 210 | Numbers between 6 and 19. |
| 7 | 280 | Numbers between 7 and 29. |
| 8 | 360 | From now on you will no longer receive the time bonus. The numbers are even bigger. |
| 9+ | 450 | Numbers between 11 and 49. This is nonsense. |
In case you are interested: the points per level are chosen following the pattern of triangular numbers.
Why should you play this game?
This game is to improve your skill with operations with integers and to correct small errors. It also exercises your brain, which is good whatever your age.
If you are also a student and have math subjects or those that include calculations, whatever your level, whether you are in high school or university, this game allows you to have an advantage in exams whenever calculations with integers or natural numbers appear.
If you are good or good operating your notes will improve. Some people they develop the ability to do the counting automatically. That means who see the answer automatically, without counting. However long before you reach that level of mastery you will see that your brain he is so easy to do the accounts that you will not lose the thread of the exercise or problem in which you find yourself. By the way, you will earn time and points.
Doing the math easily means you'll need to spend very little on it time and attention. For small accounts you will be much faster if you operate mentally than if you start pressing calculator keys. Before after putting the first number on the screen of your calculator you will already know the answer.
Tricks
There are an infinite number of calculation tricks, but there are two keyboard tricks that help you to be faster:
- Trick number 1: If the answer is zero, there is no need to write the zero. You can directly click send or press the enter key.
- Trick number 2: If the answer is a negative number you can press the - sign at any time. I mean, you can think that the answer is 4 and press 4. Then you realize that the result is negative. So you don't need to delete. you press the - button and the 4 in the example will become a -4. This doesn't work on some devices.
