Definition
Addition
Addition is the operation that combines addends to produce their sum.
Continue from this idea into connected AXIO math.
Defining relationship
Addends come together; their result is the sum.
Addition is the operation that combines quantities, called addends, to produce a sum. It can model joining parts, adding on, or composing quantities into one total.
- 1addend
- 2operation
- 3addend
- 4sum
The operation combines the addends; the sum names the result.
What it means
Use addition when separate quantities belong in one total or when an amount is increased. Keep track of what each addend represents, then combine their values.
Remember it
Addends come together; their result is the sum.
Example
A shelf has 18 science books and 7 puzzle books. The total is 18 + 7 = 25 books.
Watch for
Addition does not always make a value larger. Adding zero leaves it unchanged, and later adding a negative number can lower it.
Common mix-up
Addition is the operation; the sum is the result.
Exact meaning
Addition is the operation that combines quantities, called addends, to produce a sum. It can model joining parts, adding on, or composing quantities into one total.