Total 10 - How to Play The Addictive Card Game by Crack Games

About TOTAL 10, from BoardGameGeek:

Can you count to 10? Then you can play TOTAL 10! TOTAL 10 is a fast-paced, addictive card game for 2 to 8 players in which everyone manages a hand of exactly 10 cards. On your turn, draw a card from the central board and discard one from your hand - but watch out: other players can intercept your discard at any moment! Your goal: be the first to announce "TOTAL 10!" by combining all 10 cards in your hand into sets of different colors, each adding up to exactly 10. No repeated colors allowed. The twist? You must balance quick mental math with real-time reflexes - the interception rule means no one ever fully relaxes, even when it's not their turn. The game is played over 5 rounds. The player who calls TOTAL 10 scores 10 points; all others score negative points equal to their uncombined cards. After 5 rounds, the highest score wins. Simple rules, immediate pick-up, endlessly replayable. Created by the family behind Crack List, TOTAL 10 brings together all generations with pure numbers - no language barrier, no reading required. -description from the publisher