Răspuns :
Răspuns:
1×20=20 1+20=21
2×10=20 2+10=12
4×5=20 4+5=9
20×1=20 20+1=21
10×2=20 10+2=12
5×4=20 5+4=9
are 6 soluții
a × b = 20 => 10 × 2 = 20 ( 10 + 2 = 12 )
5 × 4 = 20. ( 5 + 4 = 9 )
20 × 1 = 20. ( 20 + 1 = 21 )
3 soluții are problema.
Răspuns:
1×20=20 1+20=21
2×10=20 2+10=12
4×5=20 4+5=9
20×1=20 20+1=21
10×2=20 10+2=12
5×4=20 5+4=9
are 6 soluții
a × b = 20 => 10 × 2 = 20 ( 10 + 2 = 12 )
5 × 4 = 20. ( 5 + 4 = 9 )
20 × 1 = 20. ( 20 + 1 = 21 )
3 soluții are problema.