Mental calculation is thought to be tightly related to visuospatial abilities. One of the strongest evidence for this link is the widely replicated operational momentum (OM) effect: the tendency to overestimate the result of additions and to underestimate the result of subtractions. Although the OM effect has been found in both infants and adults. no study has directly investigated it... https://thegreensjunglebeautyshops.shop/product-category/bamboo-gloves/