About Expanded Addition
The expanded edition has 8 modes to practice. So whether you have just started learning addition or you are already an expert, there are still maths to practice.
The first mode (TU+TU) is just about adding a maximum of 2-digit numbers.
The second Mode is about adding three 2 digits numbers.
The third mode is to practice the addition of 3-digit numbers.
The fourth option can help you practice three numbers of 3 digits.
The 5th and 6th options are for 4-digit numbers.
The 7th and 8th options are for practicing addition of decimal numbers.