This forum seems kinda dead, but I'll try my luck anyway.
Whenever they ask for X-digit rounding must you always normalize? I'm assuming you must as it is in chapter 1 and in an example in chapter 6. I was in a Whatsapp group and they are all under the impression that you don't need to normalize unless they tell you to.
Bonus question: if you must normalize, must you do it for every operation? I believe so, but again, the group disagreed with me.