Problema Solution
Laura needs to measure 1 ounce of flour for a recipe but she can only find the 2-ounce and 5-ounce spoons. How can she measure the flour?
Answer provided by our tutors
Since 5 - 2*2 = 1 we conclude:
Laura can take 1 spoon of 5-ounce and subtract 2 spoons of 2-ounce. What is left is 1 ounce.