Play: Calculator

Puzzle

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Calculator

Created by:

Bild_3_chat NeuroNation

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2.9 (288 ratings)

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Published:

2009-01-06

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Description

“Iron rusts from disuse, stagnant water loses its purity and in cold weather becomes frozen, even so does inaction sap the vigor of the mind.”

…were the words of one of the greatest thinkers of his time: Leonardo Da Vinci. Recently scientists have discovered a new way to improve cognitive abilities using specially designed exercises. Calculator is one such exercise specially desi…

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Instructions

The objective of this exercise is to fill in the missing number or arithmetic operator in an equation. You can use the buttons on the right side of the screen. You will be much faster if you use the numbers on your keyboard instead of clicking with the mouse. Hit the ‘c’ key to delete the current number.

Best (see all)
avatar for tartigrator
tartigrator

Jan. 06, 2009

Under rating threshold (show) good game

+ - !

(1)

avatar for reyoo30309
reyoo30309

Jul. 06, 2009

Under rating threshold (show) I still have fun playing this everyone once and awhile.

+ - !

(0)

avatar for Mushyrulez
Mushyrulez

Feb. 17, 2009

Under rating threshold (show) onset isn't first...

+ - !

(0)

avatar for reyoo30309
reyoo30309

Jan. 06, 2009

Under rating threshold (show) I enjoyed it but it could use a restart button.

+ - !

(0)

avatar for catpaw
catpaw

Jan. 06, 2009

Under rating threshold (show) jonjontarget; because they are retards.

+ - !

(0)

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