This app is for children new to math addition. Create problems from easy to difficult problems. For each type, create a random mix of 20 questions and give you a score when you solve them. Each problem may or may not set a 15 second timeout. Type of addition. 1 digit plus 1 digit result is 1 digit 1 digit plus 1 digit result is 2 digits 2 digits plus 1 digit result is 2 digits 1 digit plus 2 digits The result is 2 digits 2-digit plus 2-digit result is 2-digit 2-digit plus 2-digit result is 3-digit 3 digits plus 3 digits Result is 3 digits 3 digits plus 3 digits The result is 4 digits It's fun to practice math additions step by step.