The least count in your case is just the smallest division of length on the rule.
0.5mm
You can compare to a list of stones with their known densities, and at least rule out most of the stones that are far off.
I think this is meant to be "Vernier Caliper". It is an instrument used to measure objects to limits to fine to read by rule. It consists of two parts. ' 1) A metal bar engraved as a rule, with a blade at right angles to one end, so 'L-'-shaped, and ' 2) A block with a similar blade, sliding on the fixed (Part 1), so forming a pair of adjustable jaws brought into contact with the item to be measured. On the slide is another scale, and this is the Vernier part: if it does not have this, the instrument is a caliper but not a Vernier Caliper. This Vernier scale is engraved in such a way that it has a compounding effect on the adjacent fixed rule, so magnifying the measurements to a readable equivalent. ' The inch-series vernier can read to 1/1000", the metric version to (I think), 0.01mm. I stand to be corrected on that last because I have a metric caliper but it is digital, not vernier!
what is a pull-push rule
As a general rule the least developed a country is the less energy it needs. The other side of that is the more developed countries are easy to see from space because of all the lights on at night
0.5mm
1mm
I have steel rules that are marked down to 1/64 of an inch.
Measuring. Most of the world use the metric system. Only three countries in the world still have not imposed the metric system as norm; the United States, Liberia and Myanmar. Globally, metric rulers rule.
there is no cavalry rule, they count as just fast attack
The smallest division is 1mm (one milli metre). There 1000 divisions of 1mm in a 1 m (one metre) rule.
A meter rule.
It is not possible to determine the rule from only one number!
count it by 4
A single number, such as 1368, is not sufficient to determine a rule.
The least number of significant figures in any number of the problem determines the number of significant figures in the answer.
The Rule of Four. At least four justices must vote to grant certiorari (review the case) for it to be heard.