Remember that when a number is right next to a letter that means multiply.
If a variable is written on top of a number, fraction style, that means division.
The same basic rules we used yesterday apply today: Goal is to get the variable alone, do so by doing the opposite operation than is shown, and make sure you do the same thing to both sides of the equal sign.
Remember that when a number is right next to a letter that means multiply. If a variable is written on top of a number, fraction style, that means division.
0 Comments
Chapter 6 Equations and InequalitiesWe've made it to algebra! I'm so happy. :D
*The goal of algebra: to get the variable alone on one side of the equal sign. x=4 *In one step equations, do the opposite of the operation showing to move terms to the other side. *Remember, whatever you do to one side of the equation you MUST do to the other side. VocabThis chapter has been vocabulary heavy. In the notes I've added here, there are definitions of the words, but I'll type out the "Mrs. Sanford" definitions here as a reference. Variable: The letters in math Algebraic Expression: contains variable, numbers and at least one operation Algebra: The math with letters Coefficient: The number next to the letter Sequence: an ordered list of numbers Arithmetic Sequence: each term is found by adding the same # to the previous term Equivalent expression: different ways of writing the same thing - have the same value but look different Like Terms: the variables (or lack of variable) match exactly Constant: a number without a letter next to it Simplest Form: no like terms and no parantheses Linear Expression: one variable, no powers Factoring: breaking down a number to other numbers that multiply together to get that original number PropertiesThis chapter we've also been learning some properties of math - rules that apply to all numbers. Commutative property - With only addition or only multiplication, the order of the numbers doesn't matter. Associative property - With only addition or only multiplication, the parentheses can move and it doesn't change the value Additive Identity - adding zero doesn't change the "identity" or value Multiplicative Identity - multiplying by one doesn't change the "identity" or value Multiplicative property of zero - anything multiplied by zero is zero General Review - not including factoringBell work for this weekThe only difference between what they did the day before (combining like terms) and today, is that they need to distribute the negative (subtract sign) through everyone in the second parentheses, then combine like terms.
|
AuthorI thought this would be a great spot to put the daily notes, so if you ever miss, or don't understand, you can check here. Archives
May 2018
Categories |