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Arithmetic or arithmetics is the oldest and most elementary branch of mathematics. It consists of the study of numbers, especially the properties of the traditional operations between them—addition, subtraction, multiplication and division. Arithmetic is an elementary part of number theory, and number theory is considered to be one of the top-level divisions of modern mathematics, along with algebra, geometry, and analysis.

The below are the links to the sub topics. Click on the links below to view details about topics.

1. LCM & HCF

2. Percentages

3. Ratio – Proportion – Variation

4. Average , Mean , Median and Mode