Question

684*97=684*100-____*3​

Answer 1

$684 \times 97 = 684 \times (100 - 1 \times 3) \\ \\ 684 \times 97 = 684 \times (100 - 3) \\ \\ 684 \times 97 = 684 \times 97$

LHS = RHS

Hence,

1 is the answer.

Answer 2

1 is the answer to the question