Multi-Step Real World Problems
George evaluates the expression on a trivia quiz.
-8.13 = 21 + 12
He gets an answer of 8.88. Is this a reasonable answer?
A.
Since -8.13 rounds to -9 and 2 rounds to 3, the final answer rounds to 9.
His answer of 8.88 rounds to 9. So, it is reasonable.
B.
Since -8.13 rounds to -8 and 2 in rounds to 2, the final answer rounds to 8.
His answer of 8.88 rounds to 9. So, it is not reasonable.
OC. Since -8.13 rounds to -9 and 2 in rounds to 3, the final answer rounds to 10.
His answer of 8.88 rounds to 9. So, it is not reasonable.
OD. Since -8.13 rounds to -8 and 2 in rounds to 2, the final answer rounds to 9.
His answer of 8.88 rounds to 8. So, it is not reasonable.
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