1. Hopscotch: This classic game involves drawing a numbered grid on the ground and hopping from one number to another. It helps children practice number recognition and counting.

1. Number Toss: Set up a target board with numbered circles or buckets. Children can take turns throwing bean bags or balls into the targets, counting the numbers they land on.

1. Number Hunt: Hide numbered cards or objects around the outdoor area. Children can search for them and count the numbers they find.

1. Number Relay: Set up cones or markers with numbers on them in a straight line. Divide children into teams and have them run to the markers, counting the numbers as they go. The team with the highest total wins.

1. Number Freeze Tag: Play a game of freeze tag, but with a twist. When a player is tagged, they must freeze and call out a number. Other players must count up or down from that number before they can be unfrozen.

Remember, these games can be adapted to suit different age groups and skill levels.