Word Problem (Difficulty: Easy)

A durable-learning AI tutor helps students build strong understanding they can use to solve new problem or transfer learning to solve similar problem in real world.

• Maria reads 15 pages every day.
  How many pages will she read in 2 weeks?
• Before choosing an answer, explain how you would find the total pages. Type your answer.
  
• Choose your answer: Next check the Explanation and AI Feedback
  
  210 pages
  
  180 pages
  
  150 pages
  
  300 pages
  
  
Hint Explanation AI Feedback Show sketch Reflection
Hint:
2 weeks = 14 days.
Multiply 15 × 14.
Explanation:
Maria reads 15 pages each day.
2 weeks = 14 days.

15 × 14 distribute 14 as 10 + 4. Then do multiplication.

15 × 10 = 150
15 × 4 = 60
---------------------
15 × 14 = 210 pages.

So she will read 210 pages.
AI Feedback + Sam Ortega (human expert checking) ensuring no hallucination.

15 × 14 distribute 14 as 10 + 4. Then do multiplication.

15 × 10 = 150
15 × 4 = 60
---------------------
15 × 14 = 210 pages.

So she will read 210 pages.

If student chose 210: Correct answer.
Great work → you multiplied correctly.

If student chose 180: Wrong answer
You may have multiplied 15 × 12 instead of 14.

If student chose 150: Wrong answer
You multiplied 15 × 10 and forgot the extra 4 days.

If student chose 300: Wrong answer
You multiplied 15 × 20 instead of 15 × 14.
Sketch

Reflection:
Did converting weeks to days help you understand the multiplication?



PRACTICE TEST FOR MASTERY

Your answer (total pages): Write the number only.


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