Addition and Subtraction with the Astronaut

GAME INFO
Addition and subtraction with the astronaut is the online maths game for practising addition from 1 to 10 and also from 1 to 20. Click on the settings wheel to select addition, subtraction or both mathematical operations, depending on what you want to study with this online game. Also, select the number range, from 1 to 10 or 1 to 20, so that the addition and subtraction operations include random numbers within these ranges.