When adding 34 and 27, how many carries are there?
Answer
1
The correct answer is 1 — Thus only one carry was made.
Step-by-step solution
- Add the unit digits: 4 + 7 = 11. Since 11 is greater than 9, carry 1 to the tens place. This is the first carry.
- Add the tens digits plus the carry: 3 + 2 + 1 = 6. No further carries.
- Thus only one carry was made.
Common mistake: Forgetting to carry the 1 after adding units
Concept tested: Counting carries in addition
Published · How this solution was prepared and checked
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