algebra
10A+ 11c =
21c
50+50=
100
300-500=
200
5/10=
0.5
9x12=
108
15D+16F=
31F
25+100
125
150-200
- 50
20/20
1
10x13=
130
19G+15E=
34E
19+17=
36
50-20=
30
16/20
0.8
30/40
0.75
25Cx60H
1500H
90+15
105
900-500
400
50/70
0,714285714
12x51=
612
5Bx6N=
30N
70+50
300
502-201=
301
10/40
0.25
50x25=
1250