Math exam lesson 1 2 3 4
adding integers
SAME SIGNS- add the numbers and keep the sign DIFFERENT SIGNS- subtract and keep the sign of the larger number
cross canceling
dividing the denominator and the numerator by the same number
Linear function
y=x or f(x)=x and streight line
Variable
a quantity that can assume any of a set of values
Coefficient
number like 7,6,ect
dividing integers
same rule
Like terms
terms that have indentical variables and exponents
Unlike terms
terms where either the base or the exponents are different
-6+8
14
-4+-7=
-11
(-4)-6
1
quadrants run counter clock wise
1 top right 11 top left 111 bottom left iv bottom right
-4+6=
10
-8[]-15
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Arithmetic function
ADDITION OR SUBTRACTION
Add,Plus,Sum,More than, Increased by are all words for
Addition
Changing the grouping of numbers will NOT change the value. For example: (7 + 4) + 8 = 7 + (4 + 8) also works with multiplication
Associative Property
Tell which property 2+(7+8)=(2+7)+8
Associative Property
Tell which property 23=32
Commutative Property
Tell which property 96=69
Commutative Property
The order of two numbers may be switched around and the answer is the same.
Commutative Property
solving equations containing decimals
Decimals can be eliminated by multiplying both sides of the equation by the LCD of all the decimals.
a property indicating a special way in which multiplication is applied to addition of two or more numbers in which each term inside a set of parentheses can be multiplied by a factor outside the parentheses, such as a(b + c) = ab + ac
Distributive Property
Tell which property 3(6+2) = 3•6+ 2
Distributive property
Tell which property 25•1=25
Identity Property
adding or multiplying by these numbers does not change the answer
Identity Property
adding decimals
Line up the decimal points and add normally (ex. 23.62+8.369=31.989)
subtracting decimals
Line up the decimal points and subtract normally (ex. 20.02-1.36=18.66)
dividing decimals
Move the decimal in the number outside the box over as many places as you need to to make it a whole number. Then do the same with the number inside the box. If the 2nd number still has a decimal, bring it up and divide normally
times,Multiplied by, Product, Are all words for
Multiplication
use decimal to solve
Ok
dividing decimals by integers
Place the decimal point in the quotient directly above the decimal point in the dicidend
subtract, Minus, Difference,Less than, decreased by, take away, less are all words for
Subtract
absolute value
The distance a number is from zero on a number line
adding fractions
To add or subtract fraction, first find a common denominator, then add or subtract the numerators
multiplying integers
if the numbers have the same sign, the product will be positive. if the numbers have different signs, the product will be negative.
subtracting fractions
line them up vertically,make sure they have common denominators and make sure it is in lowest terms
geometric function
multiplication or division
multiplying decimals
Multiply or divide the number just as you would without decimals. You dont have to line up the decimals; add up all the decimal places in all the numbers, and that's where you put the decinal in the answer.
Integers
Whole numbers and their opposites
FINAL QUESTION WILL YOU GET AN A
YES I WILL
Divided into, Divided by, Quotient are all words for
Division
subtracting Integers
Follows same rules
Equivalent fractions
Fractions that name the same amount
Solving equations
The process of applying algebraic properties of equality to isolate a variable. For example, to solve 2x = 6, we apply the division property of equality by dividing both sides by 2, giving us x = 3. In solving equalities "whatever you do to one side, you do to the other" to keep the equation in balance
multiplying fractions
To multiply fractions, multiply the numerators and multiply the denominators
