whats a transition word for the blank?

Sara has 45 cups of flour.she needs 3/5 more cups.______________ cups of flour does she need?

would "How many" work?

To find a transition word for the blank in the sentence, "Sara has 45 cups of flour. She needs 3/5 more cups. _____________ cups of flour does she need?" we can look for a word that indicates addition or further information.

In this case, a suitable transition word would be "Therefore."

So the complete sentence would be: "Sara has 45 cups of flour. She needs 3/5 more cups. Therefore, how many cups of flour does she need?"

Note that the transition word "Therefore" is used to indicate the logical connection between the information provided in the first sentence (45 cups of flour) and the additional information in the second sentence (3/5 more cups needed).