Question

1,6 * 10^2 / 4 *10^-2

Answer 1

$frac{1,6*10 ^{2} }{4*10 ^{-2} } = frac{16*10 ^{-1}*10 ^{2} }{4* 10^{-2} } = frac{16}{4} *10 ^{2-1+2} =4*10 ^{3} =4*1000=4000$