第三十四天

[nnozomi]

多少 for "how many" with numbers (usually) larger than 几
https://resources.allsetlearning.com/chinese/grammar/Measure_words_in_quantity_questions
(same page as yesterday, further down)
Like 几 it can also mean "some amount of" in non-questions.

Guardian:
他留了多少级了？ how many grades did he repeat? (not very respectful about a corpse, Zhao Yunlan)
多少钱呀？ how much is it?
你听到了多少？ how much did you hear? (Shen Wei after his meeting with Zhao Xinci)

My practice:
你的电话号码多少？ (If correct, it tickles me that you ask "how much is your phone number" instead of "what is your phone number."
他买了多少玫瑰？怎么回事，会求婚呢？