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Complete Question
Owen solves this problem. He says the difference is 127. Explain the mistake Owen made. What is the correct difference?
335 - 218 =??
Answer:
The correct difference is :
335 - 218
= 117
Explanation:
The correct difference is given below
(2)
335
-218
_____
117
_____
The Mistake Owen made was:
5 - 8 = He added 1 to 5 from 3 , making it 15
15 - 8 = 7
Since 1 has be taken from 3, it reduces to 2, Hence, 2 - 1 = 1 .
This is where Owen made his mistake, He did not reduce 3 to 2 after adding 1 1 from 3 to 5.
So, He subtracted 1 from 3 to give him 2. This is wrong.