Darko found the sum of 324 and 57 to be 894. What error did he make?



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(1 point)
Responses

Darko did not align the digits by their place value when he set up the problem.
Darko did not align the digits by their place value when he set up the problem.

Darko did not regroup correctly after adding the ones digits.
Darko did not regroup correctly after adding the ones digits.

Darko added 324 and 75 by mistake.
Darko added 324 and 75 by mistake.

Darko multiplied the numbers instead of adding them.

1 answer

The error that Darko made was that he did not align the digits by their place value when he set up the problem. This could lead to an incorrect sum, as numbers need to be aligned by their place values (ones, tens, hundreds) to add them accurately.

So the correct response is: Darko did not align the digits by their place value when he set up the problem.

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