Sum of Ages: Lisa and Tom

easyGrade 2-4sum of-ages

The Problem

Lisa is 17 years old and Tom is 13 years old. What is the sum of their ages?

Answer:

30 years

Key Information

  • Lisa's age: 17 years
  • Tom's age: 13 years

Step-by-Step Solution

1

Identify both ages

Lisa = 17 years, Tom = 13 years
2

Set up equation

Sum = Lisa's age + Tom's age
3

Substitute values

Sum = 17 + 13
4

Calculate

17 + 13 = 30
5

Final answer

The sum of their ages is 30 years

Common Mistakes to Avoid

  • Adding wrong numbers
  • Missing one of the ages

Helpful Tips

  • Write down both ages before adding
  • Check your addition twice

Real-World Application

Adding ages is common when calculating combined ages for tickets, events, or family statistics.

Related Topics:

ageadditionsumword problems

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