addition
21+42=
63
91-17=
74
13*4=
126/7=
18
2/3*4/7
8/21
33+25=
18-5=
14*5=
70
35/5=
7
4/2*9/2
9
14+38=
52
39-22
17
15*6=
90
112/14=
8
1/5*5/14
1/14
54+42=
96
73-49=
16*7=
112
176/11=
2/8*3/7
3/28
26+73=
99
81-46=
35
17*8=
136
154/14=
11
11/12*3/6
33/72