Question

simply
1.
$(625 ) \frac{1}{2} ) \frac{ - 1}{4} ) {2}$

Answer 1

$(((625)\frac{1}{2})\frac{- 1}{4})2 \\ \\ = ((625 \times \frac{1}{2})\frac{- 1}{4})2 \\ \\ = (312.5 \times \frac{- 1}{4})2 \\ \\ = - 78.125 \times 2 = - 156.25$