Question

scrie nr 10,20,30,50,70 ca diferente in zecilor intregi

Answer 1

20-10=10
30-20=10
40-30=10
50-40=10
60-50=10
70-60=10
80-70=10
90-80=10

30-10=20
40-20=20
50-30=20
60-40=20
70-50=20
80-60=20
90-70=20

40-10=30
50-20=30
60-30=30
70-40=30
80-50=30
90-60=30

60-10=50
70-20=50
80-30=50
90-40=50

80-10=70
90-20=70