Lesson A

Lesson A

Multiply by just looking at the pattern. This only works for the numbers listed.

Hint: Count the number of (1’s)

1 x 1 = 1

Hint: There are 2 (1’s) 11 x 11 = 121

Hint: There are 3 (1’s) 111 x 111 = 12321

1111 x 1111 = __________

11111 x 11111 = ___________

111111 x 111111 = _____________

1111111 x 111111 = ______________

11111111 x 1111111 = _______________

111111111 x 11111111 = ________________

1111111111 x 111111111 = 12345678987654321