Mental calculation has so many advantages and really brings mathematics to life as well as providing motivation and strengthening and enlivenment to the mind. This is because numbers are mental concepts, they do not exist on paper. Furthermore, this free online app “mental addition calculation” can perfectly improve the memory. Memory depreciates if it is not exercised. Short term, medium term and long term memory are all stimulated by playing this app,mental calculation. There are totally 6 levels as followings:-
Level 1: sum up to 10
Level 2: sum up to 20
Level 3: sum up to 100
Level 4: sum up to 200
Level 5: sum up to 500
Level 6: sum up to 1000
Each level, you will earn point (1 point per answer) if you answer the question correctly in time.


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