11 x 99 = | 1089 |
111 x 999 = | 110889 |
1111 x 9999 = | 11108889 |
11111 x 99999 = | 111108888 |
9 x 9 = | 81 |
99 x 99 = | 9801 |
999 x 999 = | 998001 |
9999 x 9999 = | 99980001 |
151 | ||
158 | 159 | 160 |
167 |
9 x 9 + 9 = | 90 |
98 x 9 + 8 = | 890 |
987 x 9 + 7 = | 8890 |
9876 x 9 + 6 = | 88890 |
98765 x 9 + 5 = | 888890 |
987654 x 9 + 4= | 8888890 |
(10 - 1)÷ 9= | 1 |
(200 - 2)÷ 9= | 22 |
(3000 - 3)÷ 9= | 333 |
(40000 - 4)÷ 9= | 4444 |
(500000 - 5)÷ 9= | 55555 |
(6000000 - 6)÷ 9= | 666666 |