42.8
Chat with our AI personalities
To round 7.7 to the nearest decimal place, you would look at the digit in the second decimal place, which is 7. Since this digit is 5 or greater, you would round up the digit in the first decimal place by adding 1. Therefore, 7.7 rounded to the nearest decimal place would be 7.8.
As I would explain and show students, in order to round, you look at the number in the place to the right of where you want to round. If that number is 5 or more, you round up. If it's less than 5, you round down.For example, you want to round 12.54 to 1 decimal place. Look at the number in the second decimal place. That number is a 4, which is less than 5. So you'd round this down. That means your answer would be 12.5.But what if the original number was 12.58 and you needed to round this to 1 decimal place. The number in the second decimal place is an 8, which is greater than 5. So you'd round up. That means taking the number in the first decimal place and increasing it by one. So you'd round to 12.6.
2 decimal places is the second number after the decimal point. So in 13.256 the 5 is the second decimal place. To round, you look at the number to the right of the decimal place you want to round to. So in 13.256 we look at the 6. If a number is greater than or equal to 5 you round up, if the number is less than 5 you round down. So 13.256 rounded to 2 decimal places is 13.26%
217.8 the same as asking to round a number to one decimal place.
To round 10.99557429 to one decimal place, you look at the digit in the tenths place, which is the second digit after the decimal point. In this case, the digit in the tenths place is 9. Since 9 is greater than or equal to 5, you round up the digit in the tenths place to the next higher number. Therefore, rounding 10.99557429 to one decimal place gives you 11.0.