Drake found the sum of 234 and 75 to be 984. What error did he make?

Question

(1 point)
• Drake did not align the digits by their place value when he set up the problem.
• Drake multiplied the numbers instead of adding them.
• Drake did not regroup correctly after adding the ones digits.
• Drake added 234 and 57 by mistake.

Answer 1

The error that Drake made is: Drake did not align the digits by their place value when he set up the problem.

When adding numbers, it is crucial to align them according to their place values (ones, tens, hundreds) to ensure the correct sum is calculated. If this alignment is not done, it can lead to an incorrect total. The calculation of 234 + 75 should yield 309, not 984. Therefore, the misalignment likely contributed to the erroneous sum Drake arrived at.