Solution

26644

Problem / game
Two numbers under the microscope Back to problem
First name
Siddy Prabha Jayachandran
School
North Kalgoorlie Primary School
Country
Australia
Age
6

odd number is a number without a 'friend'. when two odd numbers are added, the first odd number without a 'friend' can make friends with the one without a friend in the second number. so there is no number without a 'friend'. so, when two odd numbers are added up, it becomes even.