A fixed pattern of question type

[101dalmatians]

Dear forum readers,
I would like to ask you guys a few questions...

You know that on the calculator test, there are like fixed problems types - I am being ambiguous here but for example:

#48 is a solver problem, #57 or #58 is a matrix problem, #46 is scaling, etc...

Are there any other problems on this test like the ones above? - I mean for the stated problems

[darksaber21]

These are the fixed types of problems that are on the test to the best of my knowledge (if there is something wrong, someone correct me):

#9-10: Simple 1-step (I believe, if not 2) geometry
#19-20: Right Triangles/Basic Trigonometry
#29-30: Easy Three-Dimensional Geometry
#39-40: Triangles (Typically one dealing with Law of Sines and/or Cosines and another dealing with inscribed/circumscribed cirlces)
#46 - Scaling
#47 - Regression/Best-Fit Line
#48 - Solver
#49-50: Moderate Three-Dimensional Geometry
#56 - Calculus (Basics)
#57 - Calculus Applications
#58 - Matrix Algebra
#59 - Calculus (graph)
#60 - Difficult Plane Geometry
#66-70: Study Guide Problems

(I believe that is what it is for #57 and #58, if not the other way around)

[101dalmatians]

Also, I just don't get the SD questions. I mean - I know what SD means - Significant digits but I don't know how many to put in there.
Every time, I get that question wrong like this: I put - for example 37.5 and the key says something like 37 or 38 or 37.5125 - this doesn't make sense to me...
Can you please explain???

Also, there is a scaling problem I have a question about:

If 70 3.5 m things can be put in one bushel, how many 2.5 m things can be put in three bushels? What are my variables for scaling?

[redhawk2015]

SD - you have to look at the underlined numbers in the question. If "5.625" is underlined in the question, then your answer should have 4 digits no matter what. If the answer was 12.056, then you would put 1.21*10^1 on a normal problem, but you put 12.06 on SD to match the number of digits in the underlined part (in this case, 4).

[darksaber21]

[101dalmatians]

What if you have this kind of problem (a one I had come across)?

[unparseable or potentially dangerous latex formula]

Would you use 2 SDs or 4 SDs?

(The ans. key -by the way - used 5 Sds)

[qwerty123]

[101dalmatians]