"Quanto açúcar ela precisa?"

Translation: How much sugar does she need?

[gerry11111]

This is a link to a discussion on how both constructions can be correct, but would "de quanto açúcar ela precisa" be "normal" here?
http://forum.wordreference.com/showthread.php?t=974831

[Paulenrique]

Yup, since in the answer we'd use "ela precisa DE dois kilos", for example. In my region the most common is not to use "de", but just use "quanto" (note: not every "how much" is translated as "de quanto", but "quanto". So, if you use just "quanto" you'll be less likely to make a mistake) ;)

[ychaouche]

And is "how many" correct ?