when people needed to count
Subtraction is used to check addition.
The addition sign was first used in 1544.
Addition
1 + 1 = 2The process used to solve it is "addition."
The connective "and" can mean "in addition" when used in a sentence. It is commonly used to join two ideas or items that are related.
Associative property of addition
A short addition to the end of a letter is called a postscript.ÊTo add this addition to a letter, the abbreviation, PS, is used.
sum
An abacus is an ancient form of the modern day calculator.
it is used for addition,multiplycation,division.ect
It is a prepositional phrase used as a conjunction.
Velocity addition is used when dealing with two objects moving at different velocities relative to each other. It helps calculate the combined velocity of the objects when seen from a different reference frame.