Cross Sum Volume One

Every puzzle is unique, and so is its level of challenge. To help you gauge the complexity of each, we use a star rating system. ¿ For those who are just getting started - gentle and welcoming. Remember the order of operations: 1. Multiplication and division from left to right 2. Addition and subtraction from left to right. ¿¿ Intermediate level - For the seasoned mathematician who is ready for a robust challenge. Get ready for fractions. ¿ ¿¿¿ Where things get a tad more intricate - the big ... (Læs mere)