Mental calculation
Mental Calculation
In this option we show some mental arithmetic exercises which they can improve the agility of calculation and thought.
Should not use pencil, paper or calculator. The practice of this work will get better habits and calculation strategies.
There are several options which you can choose according to your level and your learning topics.
La tarea consta de 20 ejercicios. We propose 20 exercises in each option. The answer will be chosen from among several options (multiple-choice), showing the success or failure of each item.