How to Calculate Using Japanese Abacus Part 2
In October last year, I have introduced how to represent numbers using the Japanese abacus. In this post, I am going to teach you how to add and subtract using the abacus. If you are not familiar on how to represent numbers using the abacus, please read the first part of this series by clicking the preceding link.
Note that although abacus is not needed in the calculations below since it can be done mentally, calculations done in abacus in real life involve large numbers or even those with decimals. The examples below will only give you an overview of how calculations are made and some of the strategies used. » Read more
. Equate is a math board game that works like Scrabble. In Equate, instead of forming words, you can form equations. Younger children can choose an easy game which only consists of addition and subtraction, while older children can include multiplication and subtraction. Even more challenging is to include fractions!