| Term | Definition |
|
add |
put numbers together; find the total amount |
|
sum |
the amount obtained by adding; the total |
|
plus |
the symbol or word that means to add |
|
horizontal |
written across the page from left to right |
|
vertical |
written as one thing under the other |
|
column |
numbers placed one below the other |
|
solve |
to find the answer to a problem |
|
regroup |
to rename and then carry a tens digit to the place on the left when adding |
|
estimate |
to quickly find an answer that is close to an exact answer; to make a good guess |