Question

1 + _______ = _________?​

Answer 1

$1 + 1 = 2 \\ 1 + 11 = 12 \\ 1 + 111 = 112 \\ 1 + 1111 = 1112$

$1 + 2 = 3 \\ 1 + 22 = 23 \\ 1 + 222 = 223 \\ 1 + 2222 = 2223$

$1 + 3 = 4 \\ 1 + 33 = 34 \\ 1 + 333 = 334 \\ 1 + 3333 = 3334$