You count the figures after the decimal point but not before it * * * * * The correct answer is 4. All digits, other than zeros used as place holders, are significant digits.
The number system we commonly used, known as the decimal system, has 10 digits (0 to 9). It is possible to use other number systems, with a different number of digits. Any numbering system based on the same principle (the principle of place-value) must use 2 or more digits.
The 'zero' symbol is used as a place value holder,and it can hold any place.
There are two and they are used for 'place value holders'
The hexadecimal system is base 16.
Place value is not used in the Roman numeral system.
The ones column are in single digits and if there are none then the 0 digit is used.
A place value chart is used to help understand the value of each digit based on the place or position.
In each place value there are only 10 digits that can be placed, 1,2,3,4,5,6,7,8,9,0. At that point then next place value is used. A different place value system in computers is the based two system. Its number system goes like this 0=0 1=1 10=2 11=3 100=4