arithmeticadder
nounUK /əˈrɪθmətɪkˌædə/
US /əˈrɪθmətɪkˌædər/
A tool or machine that helps you add numbers together.
The teacher showed the children how to use an arithmeticadder to check their sums.
RELATED WORDS
OTHER MEANINGS
2. A person who is very good at doing math with numbers.
As a skilled arithmeticadder, she could total the bills in her head.
3. A part of a computer that performs addition.
The chip's arithmeticadder handles millions of additions each second.
4. A teaching aid used to help students practice addition.
Each desk had a small arithmeticadder for practicing basic sums.