Final Answer:
Samantha made a mistake in aligning the decimal points when multiplying 187.1 by 0.1. The correct answer is 187.1 . Option A is answer.
Step-by-step explanation:
Samantha was asked to multiply two decimal numbers, but her teacher told her that her answer was incorrect. Let’s analyze her work and find out where she went wrong.
Samantha’s work:
187.1
0.1
______
1871
Samantha’s mistake was that she did not align the decimal points correctly. When multiplying decimals, it is important to align the decimal points before multiplying. In this case, Samantha should have moved the decimal point in 0.1 one place to the right to get 1.0. Then, she could have multiplied 187.1 by 1.0 to get the correct answer.
Correct calculation:
187.1
1.0
_______
187.1
Therefore, the correct answer is 187.1 . Option A is answer.
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Correct Question
Samantha has been working hard at learning to multiply decimals. She worked out the problem below, but her teacher told her that it was wrong. Analyze her work and figure out where Samantha went wrong, what she should have done, and what the correct answer would be.
Problem: 187.1 / 1.0
a) 187.1
b) 18.71
c) 1871.1
d) 1,871.1
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