To round the number 1.31 to the nearest tenth, follow these steps:
1. Identify the digit in the tenths place (the first digit to the right of the decimal point). For the number 1.31, this digit is 3.
2. Look at the digit in the hundredths place (the second digit to the right of the decimal point). For the number 1.31, this digit is 1.
3. Determine if the digit in the hundredths place is 5 or greater. If it is, you would round the tenths place up by one. If it is less than 5, you keep the tenths place as is. Since the digit is 1 which is less than 5, the tenths place will remain the same.
4. The final rounded number is obtained by keeping the tenths place unchanged and removing any digits beyond it.
Therefore, rounding 1.31 to the nearest tenth gives us 1.3.
