(Average times the total number of addends) minus the given sum of the addends.
Uriel.
The missing addend is 1.
29
An unknown addend is a number that is missing from an addition equation, making it necessary to find that value to complete the equation. For example, in the equation (5 + x = 12), (x) is the unknown addend. Solving for (x) reveals that it is 7, as (5 + 7 = 12). Identifying unknown addends is a common task in basic arithmetic and algebra.
Sum
addend+addend=sum
missing addend
The missing addend is 1.
29
you have to count up all of the addends
248
An unknown addend is a number that is missing from an addition equation, making it necessary to find that value to complete the equation. For example, in the equation (5 + x = 12), (x) is the unknown addend. Solving for (x) reveals that it is 7, as (5 + 7 = 12). Identifying unknown addends is a common task in basic arithmetic and algebra.
Sum
Addend + Addend=Sum
Addend
Both are called addend
Addend Addend Sum
addendaddend