Use numbers 1-10 or 1-20. If you don't have magnetic numbers or foam numbers you can print them on a piece of paper and cut them out.

Hide the numbers around the house.

Have the child find the numbers and place them in order on the ground. If they don't know the order you can write the order out on another piece of paper and they can match them.

If they are confident with their number order then you could have them practice printing their numbers.