لاحظ فقط
...................................1*8 + 1 = 9
.................................12*8 + 2 = 98
...............................123*8 + 3 = 987
.............................1234*8 + 4 = 9876
...........................12345*8 + 5 = 98765
.........................123456*8 + 6 = 987654
.......................1234567*8 + 7 = 9876543
.....................12345678*8 + 8 = 98765432
...................123456789*8 + 9 = 987654321
لاحظ فقط
1×8+1=9
12×8+2=98
123×8+3=987
1234×8+4=9876
12345×8+5=98765
123456×8+6=987654
1234567×8+7=9876543
12345678×8+8=98765432
987654321×8+9=987654321
1×1=1
11×11=121
111×111=12321
1111×1111=1234321
11111×11111=123454321
111111×111111=12345654321
1111111×1111111=1234567654321
11111111×11111111=123456787654321
عندك الحاسبة .
جرب ان كنت غیر مصدق
...................................1*8 + 1 = 9
.................................12*8 + 2 = 98
...............................123*8 + 3 = 987
.............................1234*8 + 4 = 9876
...........................12345*8 + 5 = 98765
.........................123456*8 + 6 = 987654
.......................1234567*8 + 7 = 9876543
.....................12345678*8 + 8 = 98765432
...................123456789*8 + 9 = 987654321
لاحظ فقط
1×8+1=9
12×8+2=98
123×8+3=987
1234×8+4=9876
12345×8+5=98765
123456×8+6=987654
1234567×8+7=9876543
12345678×8+8=98765432
987654321×8+9=987654321
1×1=1
11×11=121
111×111=12321
1111×1111=1234321
11111×11111=123454321
111111×111111=12345654321
1111111×1111111=1234567654321
11111111×11111111=123456787654321
عندك الحاسبة .
جرب ان كنت غیر مصدق