Definition
In addition, the augend is the number to which another number (the addend) is added. In the expression 7 + 3 = 10, the 7 is the augend and the 3 is the addend.
Plain English
When you add two numbers together, the augend is the first number — the one you're adding to.
Context Anchor
Seen in aviation math explanations, such as fuel, weight, or performance calculations, when the parts of an addition problem are being named.
Derivation
From the Latin augendus, meaning 'to be increased.' The augend is the number that gets increased when something is added to it.
Why Pilots Care
A pilot may not use this word often, but understanding it prevents confusion when a calculation or manual names the parts of an addition problem.
Intuition Check
The augend is not the amount being added. It is the amount being added to.
Example Sentence 1
When calculating total takeoff weight, the empty weight serves as the augend, and the fuel and payload weights are added to it.
Example Sentence 2
In the performance chart, standard pressure served as the augend before the altitude correction was added.