chemistry
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Math and Calculator Review
You will not survive this unless your math skills are up to snuff. The purpose of this worksheet is to refresh your basic math and algebra skills. Do not rush through it. You may work together, but do not give away or accept answers. You should all be absolutely certain that you can do these problems. You also need to practice using your calculators correctly.
Calculator:
You MUST be able to properly use your calculator in order to be successful in a science class. Your scientific calculator is more than adequate for the arithmetic you will need to do, assuming you know how to use it. In addition to the 4 standard functions (+, –, /, x) there are several functions with which you might not be as familiar. For this course, you will need to be able to use your scientific notation key, exponent key, log and inverse log keys (both natural and base–10), and your sign–change key (±). There are TONS of other keys on your calculator, some of which may or may not be useful, but those listed above are required.
Please find the following keys on your calculators, describe where they are on your calculator, what they look like, and then answer the questions:
Example:
It’s above the 3rd key (x2) in 2nd full row from the top and looks like
. It is a 2nd function.
Write the key combination you need to in order to enter the following numbers
and then answer:
16
–8.5
Sign–change (±):
Scientific notation:
Which key you have: ____________ Do you need to hit “2nd” or “shift” to use it?
YES /
NO
Write the key combination you need to in order to enter the following numbers
and then answer:
Exponent:
Write the key combination you need to in order to enter the following numbers
and then answer:
223
Logarithm (log):
Write the key combination you need to in order to enter the following numbers
and then answer:
log 723
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