In second grade math, we learn about the concepts of greatest and least numbers. The greatest number is the largest number in a group or a set of numbers, while the least number is the smallest number in that group or set.
To determine the greatest number, we compare the numbers and find the one that is the largest. For example, if we have the numbers 5, 8, and 3, we can see that 8 is the biggest, so it is the greatest number.
On the other hand, to find the least number, we compare the numbers and look for the smallest one. For instance, if we have the numbers 2, 9, and 6, we can see that 2 is the smallest, so it is the least number.
Comparing numbers helps us understand their order and relationship to each other. It allows us to identify the greatest and least numbers in a given set or group.