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Addition (Difficulty: Medium)
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.
A library has 1,456 fiction books and 2,389 non-fiction books.
How many books are there in total?
Before choosing an answer, explain how you would find the total. Type your answer.
Choose your answer: Next check the Explanation and AI Feedback
Hint:
Add the fiction and non-fiction books.
1,456 + 2,389
Explanation:
Add the numbers:
1,456 + 2,389 = 3,845
11
1,456
+ 2,389
--------
3,845
Total books = 3,845.
AI Feedback + Sam Ortega (human expert checking) making sure no hallucination.
11
1,456
+ 2,389
--------
3,845
Total books = 3,845.
If student chose 3,845: correct
You added both numbers correctly.
If student chose 3,835:
You may have mis-added the tens place.
If student chose 2,456:
You added only part of the numbers.
If student chose 1,456:
You forgot to include the non-fiction books.
Sketch
Reflection:
Did adding the thousands, hundreds, tens, and ones help?