Sum of Ages: Lisa and Tom

easyGrade 2-4sum of-ages

The Problem

Lisa is 16 years old and Tom is 15 years old. What is the sum of their ages?

Answer:

31 years

Key Information

  • Lisa's age: 16 years
  • Tom's age: 15 years

Step-by-Step Solution

1

Identify both ages

Lisa = 16 years, Tom = 15 years
2

Set up equation

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

Substitute values

Sum = 16 + 15
4

Calculate

16 + 15 = 31
5

Final answer

The sum of their ages is 31 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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