由于算盘制作简单，价格便宜，珠算口诀便于记忆，运算又简便，所以算盘在中国被广泛使用。
Since it is simple to make an abacus and cheap to buy one ， and it is easy to remember abacus rhymes ， simple and convenient to calculate with an abacus ， it is widely used in China .
珠算口诀