Maths Fun

Can we try this adding                         Watch the sign

5+1=                           5-1=                    3+1=
5+0=                           5-0=                    5-2=
5+3=                           5-3=                    4+2=            
5+2=                           5-2=                    3=1=

4+1=                           4-1=                     2+0=
4+0=                           4-0=                     5-1=
4+2=                           4-2=                     4+1=
4+3=                           4-3=                     3+2=
4+4=                           4-4=                     5-5=

3+3=                           3-3=                      5+1=
3+1=                           3-1=                      4-2=
3+0=                           3-0=                      5+0=
3+2=                           3-2=                      3+3=

2+1=                           2-1=                      2+1=
2+2=                           2-2=                      3-2=
2+0=                           2-0=                      4-2=

What do you do when you add?

What do you do when you subtract?