tyrell says $750 is about $800. Sara says $750 is about $700. Who is correct? Explain? Its number sense.
See this previous answer.
http://www.jiskha.com/display.cgi?id=1285625959
$750 rounds up to $800 because 5 rounds up to 10 and 15 rounds to 20 and 50 to 100
so 750 breaks into 700 and 50
50 rounds up to 100 + the 700=$800
answered by year 7
To determine who is correct, we need to compare the given values and identify which answer aligns more closely with the actual value of $750.
Tyrell suggests that $750 is approximately $800, while Sara suggests that $750 is approximately $700.
Since the given values are close to $750, we can compare the differences between each suggestion and the actual value.
Tyrell's suggested value of $800 is $50 higher than $750, while Sara's suggested value of $700 is $50 lower than $750.
Now, by considering the number sense, we can conclude that Sara's estimation is closer to the actual value. This is because Sara's suggested value is only $50 lower, while Tyrell's suggested value is $50 higher.
Therefore, Sara is more accurate in this case, as her estimation aligns better with the number sense and is closer to the actual value of $750.