Question

scrie toate nr nat de care au suma cifrelor a] 2; b] 4; c]6; d]8;

Answer 1

1+1=2, 0+2=2. 2+0=2
2+2=4, 1+3=4, 1+1+1+1=4, 0+4=4, 3+1=4, 4+0=4.
0+6=6, 1+5=6, 2+4=6, 3+3=6, 4+2=6, 5+1=6, 6+0=6.
0+8=8, 1+7=8, 2+6=8, 3+5=8, 4+4=8, 5+3=8, 6+2=8, 7+1=8, 8+0=8.