Mental Maths Games. Sharpen your mental maths skills on this selection of learning games. You can practise over and over again as the questions change. Many mental maths tests such as Key Stage SATs are time limited so the maths games against the clock can help you to work out answers quickly.. WebAutomatismes et calcul mental donnes alatoires sous forme de diaporamas, . WebMental math is a group of skills that allow people to do math in their head without using . WebRepeated doubling is a mental math strategy to help with this. To multiply a number by four, double it twice. For example, x . To multiply a number by , double it three times. For example x . Final thoughts and my