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Can you calculate subtraction and find the difference?
Game instructions for subtractionChoose a number from the buttons above. This will give you up to ten tasks where you have to find the difference between the two terms. Can you solve all the subtractions in a level, you will get one knowledge points and the button for that level turns green.
Subtraction in the language of mathematicsSubtraction belongs to the four basic rules of arithmetic and the correct way of talking about it to subtract.
A term subtracted from another term forms a difference:
Calculation of knowledge pointsEach completed level results in 1 knowledge point. The maximum number of points (35 knowledge points) is achieved when you complete all 35 levels. You'll get a bronze medal when you complete a level 2 times and a silver medal after 5 completed rounds. A gold medal will be received after 10 completed rounds. In Subtraction, the maximum number of collectable gold medals is 35. You only earn knowledge points for levels that has not been cleared before. A cleared level has a green background above. Even when you have completed a level, you can continue practicing at that level, but it gives you no more knowledge points.
Additional game information
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