Question

Stacey answered the problem below incorrectly

16.007 - 0.55 = 10.507
Describe what she might have done wrong, why her answer doesn't make sense and then solve the problem correctly!

Answer 1

Hello! What she did wrong was that she probably didn't do a step right and it doesn't seem like she did any regrouping. You have to line the numbers up by place value and regroup, just like you do whole numbers. 16.007 - 0.55 is really 15.457. The thing is that she didn't subtract right and did no regrouping in the process.

Answer 2

Answer: The problem is that she subtracted by the .500 which went from 16.007 to 10.507

Step-by-step explanation: The Real answer is she did it wrong because she got mixed up by the number .55 with .500 because the answer after she subtracted the number was  10.507.