Hours of entertainment for multiple children of various ages

I LOVE this card game. It recently saved an annual family camping trip. All children on the trip: L.(boy/13),O.(boy/10), M(girl/9), A.(girl/9), M(boy/6).V(girl/4). The first day was rainy and we couldn't go to the lake or put out the boats, and there was NO WI-FI I seriously thought all of the children except the 4 year old were going to have a nervous breakdown. Pulled out this simple game and got everyone playing. Easy enough for the youngest and challenging enough for the oldest. I love playing this with my kids.