Plus and Minus Quiz
Do you think you are good with numbers? Test your aptitude by finding the right signs to complete these equations. We provide the answers. You insert the symbols. Try it without a calculator for a real challenge.
The earliest evidence of societies using addition and subtraction dates to 2000 BC. However, the plus and minus symbols were not invented until around the 15th or 16th century. Before then, equations were written out in words, making it very time consuming to solve problems.