Algebra 1 Flashcards
Positive or add sign
+
Negative or subtract sign
-
Twice sign
×2
Divide sign
÷ or __
Multiply sign
(-) or x
BIRDMAS
Brackets
Indices
Roots
Divide
Multiply
Add
Subtract
What’s a term?
Variable or constant in an expression
Box/ array method
______
|__|__|
Evaluating:
Finding the value
Variable:
A letter where its value can change
Constant:
A number with no variable
How do you simplify in an algebraic expression?
Combine like terms
What is a co- efficient?
The number beside the letter telling us it’s value
What is substituting?
Replace variable with value
1st thing to do in algebraic division
Check order of expression
When a term is missing in algebraic division you…
Add 0x etc.
Natural numbers:
All the counting numbers
Positive, whole numbers beginning with 1
N=1,2,3
Integers:
Positive and negative whole numbers
Includes 0
Z=
Real numbers:
Every possible number
R=1/3,ㅠ, 0.371
Equation vs. Inequality
× + 3=4 is an equation
× + 3 < 7 is an inequality
Is greater than sign
>
Is less than sign
<
What does ● mean on a number line?
Is greater/ lesser than or equal to
Shaded in number line
Everything on the number line
• just on the numbers on the number line
The number
When you get a negative variable or constant
Divide or multiply by positive
