Math 10 week #5

This week I learned how to convert one form of measurement to another. I learned how to convert metric to imperial measurements, length to weight and volume etc.

Using this number line above, I am going to convert 8732cm into m.

  1. I am going to refer to the number line. I have to figure out how many times it takes to go from “centi” to “units.” It is 2 times.
  2. Because it moves to the left 2 times on the number line to get from centi to units, I have to do the same with the decimal place on the number.
  3. 8732. becomes 87.32
  4. 8732cm=87.32m

 

Math 10 week #4

This week, we reviewed a lot of concepts from math 9. I learned how to express numbers in scientific notation.

Ex. 2 354 becomes 2.354 · 10^3

This happens because I moved the decimal place to the left 3 times therefore, the exponent is positive 3.

If we moved the exponent to the right, the exponent becomes negative  (ex. 2.354 · 10^{-3})