Put math on the menu. At a restaurant? After you order, hang onto the take-home menus. Then, try these games: Ask your kids to find the most and least expensive items. Challenge them to count the total number of dishes between $8 and $12. Tell them you have $47.23 to spend on the meal and ask how that can be divided equally between each family member. Get them to estimate tax or tip. Issue a challenge to find the weirdest combination of menu items that totals $36.