8 × 5 = 40
88 × 5 = 440
888 × 5 = 4440
8888 × 5 = 44440
88888 × 5 =444440
888888 × 5 = 4444440


99 × 1 = 99
99 × 2 = 198
99 × 3 = 297
99 × 4 = 396
99 × 5 = 495
99 × 6 = 594
99 × 7 = 693
99 × 8 = 792
99 × 9 = 891
99 × 10 = 990


 ( 2520 )

 2520 ÷ 2 = 1260

 2520 ÷ 3 =840

 2520 ÷ 4 =630

 2520 ÷ 5 = 504

 2520 ÷ 6 = 420

 2520 ÷ 7 = 360

 2520 ÷ 8 = 315

 2520 ÷ 9 = 280

 2520 ÷ 10 = 252


 7 × 30 × 12 = 2520





7×15873=111111

14×15873=222222

21×15873=333333

28×15873=444444

35×15873=555555

42×15873 = 666666

49×15873 = 777777

56×15873 = 888888

63×15873 = 999999



1×7×15873=111111

2×7×15873=222222

3×7×15873=333333

4×7×15873=444444

5×7×15873=555555

6×7×15873=666666

7×7×15873=777777

8×7×15873=888888

9×7×15873=999999



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

123456789×9+9=987654321





0×9+8=8
9×9+7=88
98×9+6=888
987×9+5=8888
9876×9+4=88888
98765×9+3=888888
4 98765×9+2=8888888
9876543×9+1=88888888
98765432×9+0=888888888





987654321 × 9 = 8888888889
98765432 × 9 = 888888888
9876543 × 9 = 88888887
987654 × 9 = 8888886
98765 × 9 = 888885
9876 × 9 = 88884
987 × 9 = 8883
98 × 9 = 882
9 × 9 = 81







123456789× 9 = 1111111101
12345678 × 9 = 111111102
1234567 × 9 = 11111103
123456 × 9 = 1111104
12345 × 9 = 111105
1234 × 9 = 11106
123 × 9 = 1107
12 × 9 = 108
1 × 9 = 09
 

 
1 9 2 11
12 9 3 111
123 9 4 1111
1234 9 5 11111
12345 9 6 111111
123456 9 7 1111111
1234567 9 8 11111111
12345678 9 9 111111111





1=1

9×1+2=11

9×12+3=111

9×123+4=1111

9×1234+5=11111

9×12345+6=111111

9×123456+7=1111111

9×1234567+8=11111111

9×12345678+9=111111111





3 × 37 = 111
6 × 37 = 222
9 × 37 = 333
12 × 37 = 444
15 × 37 = 555
18 × 37 = 666
21 × 37 = 777
24 × 37 = 888
27 × 37 = 999



1×3×37=111
2×3×37=222
3×3×37=333
4×3×37=444
5×3×37=555
6×3×37=666
7×3×37=777

8×3×37=888
9×3×37=999