1 2 . 0 4 8 2 1. This time the Key Digit is in the 2nd decimal place, which makes it the 4 2. The unwanted digit to the right of it is an 8, which is definitely 5 or above, so we must add one onto our Key Digit
Sig figs in calculations (Khan): Addition and subtraction (9 min), Multiplication and division (5½ min) Sig figs when combining measurements with counting numbers (TylerDewitt, 10½ m) What you should be able to do Make sure you thoroughly understand the following essential ideas which ...
Significant digits are also called “sig figs.” In earlier times, significant digits were used to refer to the non-zero digits on the left of the zeros on the right end of a number. For example, 4500 would have two significant digits. In modern times, significant digits are used for...
How do you tell Excel to round to a specific number of significant figures without having to use exponential notation? This Excel formula will do the trick:=ROUND(value,sigfigs-(1+INT(LOG10(ABS(value)))value :: the number you wish to round. sigfigs :: the number of significant figure...