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What is the difference between a measured digit and an exact number?
Wiki User
∙ 12y ago
Hi!
Wow, good question!
In chemistry, an exact number is one that you know is absolutely true. For example, these are exact numbers:
12 inches in a foot
9 roses
1000mg in 1 g
However, a measured number is one that needs significant figures. For example, these are measured numbers:
12.3 g
1001 liters
361.3 miles
These are numbers that you aren't absolutely sure. If you weigh something and it states 3.0 grams, that is NOT an exact number, but rather a measured number. For all you know, the weight may be 3.00000003, but since the weighing scale can only show two digits, you get 3.0 g.
Good luck!
Wiki User
∙ 12y ago
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Is considered a significant digit when it is to the left or the right of the decimal point and it follows a non-zero digit or when it is betwee two digits?
Zero is considered a significant digit when it is to the left or the right of the decimal point. It is also a significant digit when it follows a non-zero digit or when it is between two digits.
What is a Mott number?
A Mott number is when you multiply 5 different prime number together and the product is a 4 digit number that is a Mott number4290 is a Mott number cause 2x3x5x11x13=4290
When writing a number in scientific notation. how many digits should be to the left of a decimal point?
In scientific notation, you should have only one digit to the left of the decimal point.
How do you write 0.0024 in scientific notation?
0.000000025 = 2.5 × 10^-8To convert a number to scientific notation:write out the number starting with the first non-zero digit and continue until the last non-zero digit;put the decimal point after the first digit;count how many digits the decimal point needs to move to get back to where it was originally (if there was no decimal point as the number was a whole number it was "hiding" after the ones-digit, the last digit);if the decimal point need to move left make this count negative;write ×10 to the power of this count after the number written in step 2.→ 0.000000025 = 2.5 × 10^-8
How many 3 digit combos for 5 digit cypher lock?
125
What is the difference in value between the largest 6 digit number and the smallest 8 digit number?
what is the difference between the largest 8-digit number and the smallest 6-digit number
What is the difference between greatest 7 digit number and the greatest 8 digit number?
The difference is 90000000
If you need a number between 500and600and your ones digit is 5and your tens digit is the difference between the ones and hundreds digit what number are you?
505
What is the difference between a digit and a number?
A digit is part of a number. the number 23 has two digits 2 and 3.
Find the difference between the largest 8 digit number and the smallest 6 digit number?
It is 99,899,999.
What is the difference between the largest 4 - digit number and the smallest 4 - digit number?
8999 is the precise answer
What is the difference between the smallest six-digit number and the largest 4-digit?
It is 90001.
Find the difference between the largest four-digit number and the smallest four-digit number?
Assuming you do not want a number with leading zeros, the difference is 8999.
What is the difference between the largest 4 digit number with repetition and the largest 3-digit number with repetition?
9000
What is the difference between the smallest four digit number and the largest two digit number?
10000-99=901
What is the difference between the largest 4 digit number and the smallest 6 digit number?
100000 - 9999 = 90001
What is the difference between the largest 5 digit number and the smallest 4 digit number?
99999 - 1000 = 98999
