Meaning & use
missing addend
In an addition equation, the unknown number that must be found to complete the sum, such as the blank in 5 + ? = 9.
See it in a sentence
To find the missing addend in 6 plus what equals 10, students subtract 6 from 10.
The worksheet asked children to solve for the missing addend in each equation.
A note on using this word
Missing addend problems are typically solved using subtraction, since finding an unknown part of a sum is the inverse of adding.
Words with a similar meaning
This term is best learned through its definition and examples.
Choose a synonym to suit the sentence. Meanings can overlap without being identical.
Make it your own
Write a sentence using “missing addend”, then compare your use with the examples above.
Your draft stays on this page and is not sent anywhere.