Lula wants to round 76.24491 to the nearest hundredth. She first rounds 76.24491
to 76.245 and then rounds 76.245 to 76.25 and claims that this is the final answer.
What is wrong with this approach?
She rounded a rounded number, not allowed.
That would make 4.4445 round up to 4.45, which is not true.
First, look at the hundredths place and the number just after it.
76.244
The 4 in the thousandths place is less than 5 so --
76.244 = 76.24
The approach Lula is using to round the number 76.24491 to the nearest hundredth is incorrect. The mistake lies in the second step where she rounds 76.245 to 76.25. When rounding to the nearest hundredth, we consider the digit after the hundredth place, which in this case is 4.
To correctly round to the nearest hundredth, we follow the rounding rule: If the digit after the hundredth place is 5 or greater, we round up (increase) the hundredth place value by 1. If the digit after the hundredth place is less than 5, we leave the hundredth place unchanged.
In this case, the digit after the hundredth place is 4, which is less than 5. Therefore, we leave the hundredth place unchanged. This means that 76.24491 rounded to the nearest hundredth is simply 76.24.
So, Lula's claim that 76.25 is the final answer is incorrect. The correct answer is 76.24.