Sum of Ages: David and Lisa

easyGrade 2-4sum of-ages

The Problem

David is 23 years old and Lisa is 22 years old. What is the sum of their ages?

Answer:

45 years

Key Information

  • David's age: 23 years
  • Lisa's age: 22 years

Step-by-Step Solution

1

Identify both ages

David = 23 years, Lisa = 22 years
2

Set up equation

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

Substitute values

Sum = 23 + 22
4

Calculate

23 + 22 = 45
5

Final answer

The sum of their ages is 45 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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