Răspuns :
A:5=8, rest
A=8×5+1=41
8×5+2=42
8×5+3=43
8×5+4=44
8×5+5=45
8×5+6=46
8×5+7=47
8×5+8=48
8×5+9=49
A=8×5+1=41
8×5+2=42
8×5+3=43
8×5+4=44
8×5+5=45
8×5+6=46
8×5+7=47
8×5+8=48
8×5+9=49