Screenshot of HappyNeuron Pro exercise Countdown



Visual-Spatial Reasoning


Executive Functions





The task

Train your mental calculation and multi-step processing skills by discovering the math formulas. Each exercise will present several numbers and the four basic math operations: addition (+), subtraction (-), multiplication (x) and division (/). You will need to choose the right combination of numbers and math functions to achieve the given answer. From time to time, you will need to use your intermediate results to reach the given answer.


What It Trains

The main goal of this exercise is to help your client work on their strategic planning, reasoning, and cognitive flexibility skills. In this exercise, your client’s working memory will also be challenged as they must keep track of which numbers and operators that they have used as well as use the solutions derived from each step performed to arrive at the given solution. In the real-world, your client would use these skills for everyday activities such as keeping track of the sequence of information shared in a conversation, effective preparation of meals, and for managing personal finances. 


You can modify the number of operations needed, from 1 to 5; the total amount of numbers available, from 3 to 6; the complexity of the solution, easy to hard; the need to use all numbers; and the time limit, unlimited, or 1 to 5 minutes.

Number of Unique Configurations

Over 700 unique game configurations and significant data set depth.

Check out the other exercises in HappyNeuron Pro

We have 45+ exercises targeting different cognitive abilities.