Yes if the point of the exercise is to improve your mental arithmetic skills. It's a bit arbitrary but it's not complicated. This is the same way that steroids is cheating - the competition is defined such that PED are considered cheating, so using them is cheating.
Yes if the point of the exercise is to improve your mental arithmetic skills. It's a bit arbitrary but it's not complicated. This is the same way that steroids is cheating - the competition is defined such that PED are considered cheating, so using them is cheating.