Bingo cards with a free centre square, using multiplication facts or numbers 1 to 75, from 8 to 24 cards, with a caller's list as the answer page.
Every card is different, so a whole class can play at once. The caller reads a multiplication fact such as 6 × 7 or a number, and students cover the answer on their card. The last page lists every call with its answer.
Start younger players with 3 × 3 cards and numbers 1 to 75, then move to 5 × 5 multiplication cards once the facts come quickly.