20.46 * 4 = 81.86
Round the answer to 1 decimal place what is the answer?
My answer is 81.8 if not please tell me why and how?
81.9
the six rounds up.
When I multiply 20.46 by 4 I get 81.84 -- so your answer is right. Rounded to one decimal place, it's 81.8
To round the answer to 1 decimal place, we look at the digit immediately following the desired decimal place. In this case, we want to round to 1 decimal place, so we look at the digit in the second decimal place.
In the original answer of 81.86, the digit in the second decimal place is 6. If this digit is 5 or greater, we round up the digit in the first decimal place. If the digit is less than 5, we keep the digit in the first decimal place the same.
In our case, the digit in the second decimal place is 6, which is greater than 5. Therefore, we round up the digit in the first decimal place, which is 8, to the next whole number, resulting in the rounded answer of 81.9.
So, the correct rounded answer to 1 decimal place is 81.9, not 81.8.