Meaning: to add two or more numbers in order to find the total amountSynonym: tot up (informal)
- add up Fran has a good head for figures. She can add up really quickly, and she always gets the answer right.
- add up sth Could you add up these amounts and let me know the total?
- add sth up After he jotted down the cost of each dish, he added them up and found the total cost of the meal.
add up: numbers, figures, amounts, prices, costs
You'll need to be good at adding up if you want to be