Memory Numbers, addition, subtractionVersión en línea Hi students, in this game you will practice some numbers from 0 to 9,999, additions and subtraction. por LAURA ANDREA MEDINA DIAZ 50 15 1,249-200= 1,049 745 134-98= 36 45+12= 67 Addition operation 25+64= 89 Minus Plus 1,957 Subtraction operation