Răspuns:
17...18:3=6
3x3=9
18:2=9
9x3=27
8x3=24
12:3=4
8x2=16
12:2=6
9*3=27
21:3=7
12:3=4
12:2=6
18:3=6
18:2=9
15:5=3
8.c=24:3
C=8
B=4 * 4+4=8
A=2 * 2+2=4
9.27:3 =9
10.2x6=12
12:3=4
11. 18:2=9
9x3=27
12. 27:3=9
9:3=3
9+3=12
13. 24:3=8
1992+8=2000
14. 9x8=72
30:3=10
72-10=62