《龙龙和算盘》从小学生龙龙的视角，介绍了中国传统计算工具——算盘的使用方法。龙龙的爷爷经营着一家丝绸店，每天他都要用算盘来计算收入。龙龙很不理解，爷爷为什么不用更现代化的电子计算器呢？后来，龙龙在做数学作业的时候遇到了困难，他终于发现了算盘的奥秘，并认真地跟爷爷学习使用算盘。| Longlong and the Suanpan tells the story about Suanpan the Chinese traditional abacus from the perspective of Longlong, a primary school student. Longlong's grandfather ran a silk shop and he calculated his incomes with a suanpan every day. Longlong did not understand why grandfather doesn't use a more modern electrical calculator. One day, Longlong had a maths problem and he found the secret of suanpan. Longlong began to learn how to use suanpan from his grandfather earnestly.