Important Rules for Math

Common Denominator
Change Improper answer to Mixed number if needed

Commom Denominator
Must borrow if top fraction is smaller
Change Improper answer to Mixed number if needed

No Common Denominator
Change mixed numbers to improper fractions first
KCF
Change Improper answer to Mixed number if needed

No Common Denominator
Change mixed numbers to improper fractions before multiplying
Change answer from improper to mixed if needed

Change subtraction problem to addition problem with keep, change, change
If the signs are the same, add and keep the sign
If the signs are different, subtract and take the sign of the larger number

Positive x positive = positive
negative x positive = negative
negative x negative = positive

Line the decimals up and add 0's if necessary to fill in place value.

Count the amount of numbers behind the decimal(s) in the problem. Your answer will need that many numbers behind it's decimal. Add 0's if necessary

Move the decimal on the outside of the house until it is gone. You must move the decimal inside the house that many spaces as well. Add 0's if necessary.

Move the decimal point two places to the right. (The number gets bigger)

Move the decimal point two places to the left. (The number gets smaller)

Divide the top number by the bottom number (cowboy/horse)

Write it as it sounds (.6 = 6 over 10) or however many numbers are behind the decimal point is how many 0's you will add to the 1 on the bottom fraction. (.6 has 1 number so put 6 over 10)

Part over whole = percent over 100

(Remember that a % always goes over 100)

Looking for something over 1