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by 李侠盛永志

ebook

1 of 1 copy available

1 of 1 copy available

本教材整体框架变化较大，把珠算式心算内容从各章提炼出来，单独列为一章，以突出体现珠算启智健脑的作用；点钞内容在原有的基础上又进一步加以丰富，也将其单独作为一章，使其内容更趋近于完善；为了加强技能培养，本教材又增加了账表算及传票算，增加了数字小键盘操作一章。