The most important thing I learned in week 2 of math 10 is scientific notation. This is a very interesting math topic because it also applies to science while many others don’t. Firstly scientific notation is just looking at a really small or really big number and turning it into an equation instead of reading the insanely long number.

The way to do it is if you have a really big number like 7,500,000,000,000 you wouldn’t use that number but you would move the decimal point till it gets to a nice number like 7.5. Once your at 7.5 you look at how many decimal places you moved to get to this number and you put it into an equation: 7.5 x

When you have a negative it is a different approach to it. For example if the number is 0.000,000,292 you bring the decimal spot backwards so it becomes negative. If the number you choose is 2.92 then you have to see how many spots the decimal moves back and put it into an equation. 2.92 x

This is just like multiplying and dividing exponent with adding the exponents if it is a multiplication question and Subtracting if it is a division question.