2 digit subtraction
24-15=
9
43-21
22
45-32=
13
35-27=
6
64+33=
97
94-18=
76
76-56=
20
78-23=
55
75-34=
31
16+48=
64
64-32=
32
98-67=
31
45-21=
24
57-12=
45
19+19=
38
78-34=
44
23-12=
11
93-70=
23
90-20=
70
83+14=
97
99-87=
12
53-32=
21
25-35=
0
37-19=
18
29+61=
90