Page 1 of 1

Power calculations

Posted: Tue Oct 23, 2018 12:14 pm
by melissa_dis4K
When I am calculating sometimes I get the wrong power on my calculator and was wondering if anyone knew why this is? I do make sure I input everything correctly and that I use parentheses.

Re: Power calculations

Posted: Tue Oct 23, 2018 12:52 pm
by Nicoline Breytenbach 3D
I sometimes have this same problem, and for me I've discovered it usually has to do with not converting everything to the right units before calculating. For instance leaving something as grams when it should be kilograms can lead to the right number answer except with the wrong power.

Re: Power calculations

Posted: Tue Oct 23, 2018 2:39 pm
by Katie Frei 1L
I have this problem often as well, so I usually just do the calculations without the powers, then figure out the powers separately, and then finally input them in to the final answer. This also helps me check my work and that I have the correct scientific notation.

Re: Power calculations

Posted: Fri Oct 26, 2018 12:12 pm
by Javier_Ochoa_DIS_3J
Make sure the use parentheses around your numbers.

For example instead of doing 9 x 10^3 times 3 x 10^2

You should input the numbers like this (9 x 10^3) times (3 x 10^2)

It is important when dividing and doing things other than just multiplying.

Re: Power calculations

Posted: Sat Oct 27, 2018 1:08 pm
by Peichung Chou 1A
Whenever you do these types of calculations, remember to always use proper parentheses placement. If parentheses are inserted correctly, it will throw off your calculations.

Re: Power calculations

Posted: Sun Oct 28, 2018 1:22 am
by 204765696
It can be for many reasons, however one of the common mistakes are placing parantheses in the right places. You should check that!

Re: Power calculations

Posted: Sun Nov 18, 2018 9:15 pm
by daniela3D
I actually had this problem too.
For instance: if you have a problem in which you are dividing make sure to solve one portion(bottom or top) instead of doing it all at once. Also, if you are dealing with problems that have the power of 10^3 there's a symbol on your calculator that has (EE which represents 10). This helps with equations so much! It is easier to identify where you went wrong when solving an equation.