To round a number to a particular digit, look at the digit immediately to the right of your target, in this case, the tenths place. If that digit is 4 or lower, zero it and everything to the right of it out. If that digit is 5 or higher, increase the target digit by one and zero everything to the right of it out. If your target digit is a 9, increasing it will turn it to zero and increase the digit to the left of it by one.
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226.08 round to the nearest whole unit is 226
3
To convert 40.3 liters to the nearest whole unit, we look at the decimal portion (0.3). Since 0.3 is greater than or equal to 0.5, we round up to the next whole unit. Therefore, 40.3 liters rounded to the nearest whole unit is 41 liters.
9.3 rounds to:10 to the nearest ten9 to the nearest whole number/unit
7.5 rounds to10 to the nearest ten8 to the nearest whole number/unit