Question. Caleb has 3 dozen jellybeans. Sophie has half as many jellybeans as Caleb. How many jellybeans do they have in total?
Answer. 54
What step-by-step reasoning justifies that answer?
Reasoning: Caleb has 3 x 12 = 36 jellybeans. Sophie has 36 / 2 = 18 jellybeans. Together, they have 36 + 18 = 54 jellybeans.