Example: 78 - 45
add 5 to 45 to make 50.
50 + 20 = 70
70 + 8 =78
20 + 5 + 8 =33
Thats how you solve mathmatical problems using Reversibility.
I am a Year 8 student at St Pius X Catholic School in Auckland, New Zealand. I am in the SPX Nu'u Learning Space and my teacher is Mrs Tu and Mrs Lauchlani.