Question

Ajutor urgent
Hshafahajagahjahshaa

Answer 1

Răspuns:

10,11,12 13,20,21,22,30,31,40

Explicație pas cu pas:

1+1=2<4

1+2=3<4

1+3=4<=4

2+1=3

2+2=4

1+0=1

2+0=2

3+1=4

3+0=3

4+0=4