Pre-Algebra: Don't forget your Chapter 2 Test is on Friday. Your Chapter Review is due that day and is worth 5 extra points on your test if it is complete.
I will be having tutorials on Friday morning, 9/23 from 8:00-8:30 am. Please print out this blog post as your tutoring pass.
Extra Practice Videos to help prepare you for the test:
Exponent Properties Involving Properties
Exponent Rules 1
Exponent Rules Part 2
Understanding Exponents
Scientific Notation Examples
Scientific Notation 2
Scientific Notation 3
Exponent Properties Involving Products video extra credit
ReplyDelete3 things I learned
1- exponents are never distributed
2-you multiply the base by the exponent
3- it doesn't matter what order you do the multiplication in
2 things I have questions about
1-whats an exponent property?
2-when do you ever multiply the base and exponent together
1 thing that stuck with me
1- the order in which you multiply doesn't matter
NOTES! I watched 2 videos
ReplyDelete1.Exponent Properties Involving Products
When you have something with an Exponent An rise that to an exponent you can multiply the exponents.
When multiplying it dose not matter which order you do it in.
Anything to the zero power is equal to one.
2.Exponent Rules Part 1
Exponents with different powers are pretty ease if there small numbers an small powers..:)
Exponent rules 1.
ReplyDelete3If you are multiplying to exponents together just add the number of the two exponents together
2if the two base numbers are the same just add the exponents
1if your adding you cant simplify
2 do these methods work on negative numbers?
1 do these methods work on decimals?
1Exponents are easy you just make them hard.
Subtraction of rational numbers.
ReplyDelete3you have to have a common denominator.
2.the old fraction without a common denominator must still be equivalent to the new fraction with a common denominator
1if it is a mixed number change it to an improper fractions
2. can decimals be rational numbers?
1what are rational numbers?
1.get a common denominator and subtract thenumerators.
Two more videos:)
ReplyDelete1.Understanding Exponents
When A number is multiplied by its self a number of times it is Exponential notation.
An Exponent is Time its self a number of time,NOT times the power.
2.Scientific Notation Examples
If you have a decimal with a bunch of zeros, and you wanted to shorten it you find the nearest number that's not a zero an put a decimal behind it then add the numbers behind the decimal.
The zeros in front or behind the decimal considering if the decimal is to the left or right. You add the zeros together an times it by the decimal.
The rest of the video confused me..
Last two videos
ReplyDelete1.Scientific Notation 2
The Speed of light is 3* 10^8 Meters/second.
d=r*t
d= 3810^8 m/s * 5*10^2 s
3* 5 * 10^8 *10^2 m
d= 15 * 10^10 m
The 15 number must be less than ten.
1.5*10 * 10^1 * 10^10 m
[D=1.5 * 10^11 m]
Scientific notation 3
On February 2,2010 ,the U.S Treasury estimate the national debt at $1.2278 * 10^13. The U.S Census Bureau's estimated for the U.S population was about 3.086 * 10^8.
Total debt divide by the total number of people.
1.2278 * 10^13 1.2278
---------------- = -------- * 10^5
3.086 * 10^8 3.086
10^13
----- = 10^13 * 10^8 = 10^5
10^8
Round everything to the fourth decimal places.
(0.37979)
0.37979 * 10^5 $ per person.
has to be greater or equal to 1 or less than 10.
0.3979 * 10 * 10^4
[3.979 * 10^4]= $39,790 debt per person.
Savannah McCoy 1st period understanding exponents
ReplyDeleteExponents do not tell you how many multiplications there are.
Exponents tell you how many times the base appears as a factor.
How come 5 to the 0th power is not 5???
How come it's 1??
Savannah McCoy 1st period scientific notation
ReplyDeleteYou wanna figure out the largest exponent of 10 that fits into it.
Count how many positions to the right of the decimal Including that term.
It is only a scientific notation if there is a single digit in front of the decimal.