"Simple arithmetic" refers to basic calculations and math operations, such as addition, subtraction, multiplication, and division. It involves performing math tasks without any complexities or advanced concepts. Full definition
Now matter how hard they try to spin the data, the laws of simple arithmetic hold. (cbsnews.com)
Number Sense will provide a strong foundation in simple arithmetic which students will need to answer more complex world - problems. (epleadershipacademy.org)
Simple arithmetic shows that is more than 20 years. (sbnation.com)