do sums's Usage Examples:

Young children attended school from age five and were expected to read and do sums before entering the mill when they were nine.

Whoever can do sums will have enough to live by; whoever cannot will squander even mountains.

freedmen and their children, Storer taught freedmen to read, write, spell, do sums, and to go back into their communities to teach others these lessons.

sarcastic shtick—predictably idiosyncratic though 'You do English/I'll do sums/You break fingers/I'll break thumbs' may be, it brings you up short anyway.

Synonyms:

overdo; make; exaggerate;

Antonyms:

tightness; immovability; inaction; inactiveness;