1st always put in the MONEY
2nd put in the operation ( +  X ÷ look for WORDS or think ideas) 3rd put in the "other number" 4th if there is a % PUSH IT If there is not, push =


OFF 
Mr. Timm bought a new pair of tennis shoes. The price was $39.88 BUT they were on sale for 15% OFF  
Change or Difference 
Mr. Timm paid the cashier with a $50.00 bill. How much CHANGE will he get back? (you put the BIG number in, subtract the small number out, push the = sign, that's what it's all about...you do the hokey pokey....  
OF 
X 
How much is 18% OF $49.88 ~ You put the money in....push X (of) the other number (18) then if there is a %, push it! 
ON 
X 
Commission ON sales 
JUST 
X 
How much is JUST (X) the tip?
How much is JUST (X) the sales tax? 
How much for a whole bunch? 
X 
Mr. Timm wants to purchase a pop for every student in class. He has 31 students and each pop is .75 How much will it cost (whole bunch X)? 
How much for ONE? (unit price)  ÷ 
Meijer has a 12 pack of pop on sale for $2.88 how much is the unit price or how much for ONE? 
HALF (divided by 2 =) 
÷ 2 = 
Mark and Tara earned $48.00 for shoveling show. They get to split it. They each get half. How much is half? 
INCLUDING SALES TAX 
+ 6 % 

INCLUDING A TIP 
+ 15 % 

MONEY AND HOURS 
$ X H = 

TIME AND A HALF  MULTIPLY "OVERTIME HOURS BY 1.5  
15 MINUTES  1/4 HOUR  .25 
30 MINUTES  1/2 HOUR  .50 
45 MINUTES  3/4 HOUR  .75 
JUST A TIP 
X 15 % 

JUST sales tax 
x 6 % 

A neat trick when trying to find 10% of a price....simply move the decimal ONE Place to the left ($438.00 ~ 10% =$43.80)  
When ROUNDING...underline the first two numbers on the right side of the decimal...look at the THIRD number to see if it is a "magic number" (5, 6, 7, 8, or 9), if it is...dump a penny on the guy next door and it goes UP one penny!....if it is NOT a magic number....TRASH IT!  
Power of "10" Add numbers that equal 10 ~ I say 6, YOU say 4 I say 9, you say 1 THEN you must always carry one to the guy on the left....(that number goes up by one). Example: you spend .48 at the store and pay with a dollar....I say 8 YOU say 2 The 4 goes up to a 5 I say 5 YOU say 5 The change you have coming back is .52 The only exceptions are when you get to WHOLE numbers ending in a zero such as 40....then you count up to 100! 