M-1 Addition and substraction

This app is fexible and let you to set your questions.

There are serveral modes that can be choose including
1. a + b
2. a - b
3. a + b + c
4. a + b - c
5. a - b - c

You can set the range of numbers as below
1. 1 to 9
2. 1 to 99
3. 1 to 999
4. 1 to 9,999

Also, you can set the decimal place of numbers in
1. Integer
2. 1 decimal place
3. 2 decimal places

You can add questions in revision list so that you can further revise those questions.

Simple user interface and easy to use.

Practice makes perfect!