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there are 72 second graders , 54 first graders , and 65 kindergarten. how many more second graders than first graders?

analyze
representation
solve

1 answer

Let's analyze the problem step by step.

Analysis

  1. Identify the Groups:

    • Second Graders: 72
    • First Graders: 54
    • Kindergarten: 65 (This information is not directly relevant to the question.)

  2. What is Being Asked?: We need to find out how many more second graders there are compared to first graders. This requires us to compare the number of second graders to the number of first graders.

Representation

We can represent the numbers as follows:

  • Let \( S \) be the number of Second Graders: \( S = 72 \)
  • Let \( F \) be the number of First Graders: \( F = 54 \)

Solve

To find out how many more second graders there are than first graders, we subtract the number of first graders from the number of second graders:

\[ \text{Difference} = S - F \] \[ \text{Difference} = 72 - 54 \] \[ \text{Difference} = 18 \]

Conclusion

There are 18 more second graders than first graders.