Ordinal Numbers Quiz Online For Kids. Ordinal numbers are used in several everyday life situations in counting e.g. when finding the position of objects we might say first, second, third etc. Also when reading the dates off a calendar, we use ordinal numbers. Same applies to competitions where we find the position of athletes according to their performance. In this quiz, children will be presented with different objects and shapes and asked if they are in the 1st, 2nd, 3rd, 4th, 5th etc positions. 1st, 2nd and 3rd grade math.