Question

Lin’s grandmother ordered needles that were 0.3125 inches long to administer her medication, but the pharmacist sent her needles that were 0.6875 inches long. How much longer were these needles than the ones she ordered? Show your reasoning.

Answer 1

Answer: The needles were 0.375 inches longer than the ones needed.

Explanation:

To find difference between two values, subtract:

0.6875 - 0.3125 = 0.3750, or 0.375

Hope this helps :)