Fun with Numbers: The symbols for the arithmetic operations are quite common when we solve any mathematical problem. For addition we normally use the plus sign ("+") and for subtraction we use the ...

Drivers are finding a secret weapon to use when traveling on snow-covered roads, and most of them don’t have to look any farther than their gear shift.“The plus/minus is your up shift and your ...

In early 15th century Europe, the letters P and M were generally used for addition and subtraction. Why is the plus sign used for addition and the minus sign for subtraction? In early 15th century ...