Question

My number has 2 digits after the decimal point. 5 is the final digit. I get 3.7 when I round my number to 1 decimal place.

What is my number?

a. 3.65
b. 3.75
c. 3.85
d. 3.95

Answer 1

To round the number 3.7 to 1 decimal place, we look at the digit immediately after the tenths place. In this case, the digit is 5. Since 5 is equal to or greater than 5, we round up the tenths place digit to 8. So the final rounded number is 3.8.

Step-by-step explanation:

Rounding off a decimal number to a given number of decimal places is the quickest way to approximate a number. To round the number 3.7 to 1 decimal place, we look at the digit immediately after the tenths place. In this case, the digit is 5. Since 5 is equal to or greater than 5, we round up the tenths place digit to 8. So the final rounded number is 3.8.

Answer 2

To round a number to 1 decimal place, look at the digit immediately after the desired decimal place. If it is 5 or greater, round up by increasing the digit in the desired decimal place by 1.

Step-by-step explanation:

Rounding off a decimal number to a given number of decimal places is the quickest way to approximate a number. To round to 1 decimal place, look at the digit immediately after the desired decimal place. If it is 5 or greater, you round up by increasing the digit in the desired decimal place by 1. In this case, the final digit is 5, so we round up the digit in the hundredths place to 8, resulting in a final answer of 3.8.