Subtracting from 30s | Subtracting from 40s |
---|---|
2
35-33=
|
2
45-43=
|
14
36-22
|
24
46-22=
|
13
38-25=
|
23
48-25=
|
22
37-15=
|
32
47-15=
|
26
39-13=
|
36
49-13
|