Ahmad had 83 marbles. He gave 36 marbles to his friend. How many marbles does Ahmad have left?
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Worked Solution
Step 1: Subtract the ones digits. 3 < 6, so borrow 1 ten from the tens place.
13 - 6 = 7. Write 7 in the ones place.
Step 2: The tens digit is now 7 (after borrowing). Subtract: 7 - 3 = 4. Write 4 in the tens place.
Answer: 83 - 36 = 47 marbles.
Correct answer: 47
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