8 : the units digit is the first digit to the left of the decimal point if you had to write one in.
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In the number 15, the digit 5 holds a place value of 5 units. This means that the digit 5 represents 5 ones in the number 15. The value of the digit 5 in this case is 5.
The place value of a 13-digit number refers to the value of each digit based on its position in the number. In a 13-digit number, the leftmost digit represents the value of 10^12 (or trillions), while the rightmost digit represents the value of 10^0 (or units). Each digit's place value decreases by a factor of 10 as you move from left to right. Therefore, the overall value of the number is the sum of each digit multiplied by its respective place value.
place value:is the place value of where the digit is in the number such as units,tens,hundreds,thousands,etc.
In the number 4.7, the digit 4 is in the units place, which represents a value of 4. The digit 7 is in the tenths place, indicating a value of 0.7. Therefore, the place value for the 4 is simply 4.
In the number 58, the value of 5 is 5 units. In this context, the digit 5 represents a quantity of 5 ones. Each digit in a multi-digit number has a place value based on its position in the number, with the rightmost digit representing ones, the next digit to the left representing tens, and so on.