据史书记载,我国在东汉以前就已发明、使用了五珠中算盘。据东汉数学家徐岳于公元196年至206年撰著的《数术记遗》中记载:“珠算:控带四时,经纬三才”。北周数学家甄鸾注:“刻版为三分,位各五珠,上一珠与下四珠色别,其上别色之珠当五,其下四珠各当一”。由此可见,当时的五珠中算盘不是穿珠算盘——珠中无孔(没有档),名曰珠盘和盘珠。那时把涂有不同颜色的算珠放在一个刻有一排排纵向弧形槽内的木盘上,上 According to historical records, China has invented before the Eastern Han Dynasty, using five beads in the abacus. According to the Eastern Han mathematician Xu Yue in the year 196 to 206, wrote the “number of jottings” recorded in: “abacus: control with four, Jingwei three.” Northern Zhou mathematician Zhen Huan Note: “engraved version of one-third, a bit of five beads, a bead and the next four pearl color, the pearl of the colored when five, the next four pearl when one.” Thus, at the time of the five beads in the abacus is not wearing abacus beads - no holes in the hole (no file), said Pearl plate and beads. At that time, the beads coated with different colors were placed on a wooden plate engraved with rows of longitudinal arc grooves