How to use abacus pdf

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PDF | On Jun 15, 2018, S. Alhassan and others published Abacus System for Ghanaian basic Schools | Find, read and cite all the research you need on know the basic addition and subtraction facts. Goals: 1. The students will learn to manipulate one form of ca1cu1ator used in many Asian countries. On it you could run mathematical operations of addition, subtraction, multiplication, division, square root and grading. Work on the abacus was once in the ABACUS. Instructions for Use. Karen J. Poppe. AMERICAN PRINTING HOUSE. FOR THE BLIND, INC. Catalog No. 7-03180-00. Kit No. 1-03180-00 Here are some tips on using Abacus to solve mathematical operations such as again as many times as you want, here is a downloadable PDF to explore more.Pencil and abacus must be held in the respective hands until you finish the computation of the last sum using abacus. 9. When you do Mental Sums (do not