PRE-ALGEBRA Tuesday, August 12 TODAY’S LEARNING TARGET I will be able to divide numbers using the...
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Transcript of PRE-ALGEBRA Tuesday, August 12 TODAY’S LEARNING TARGET I will be able to divide numbers using the...
Get out your homework so I can check it
Do the following warm up:
True or False: is a rational number
Explain your answer
PRE-ALGEBRATuesday, August 12
TODAY’S LEARNING TARGET
I will be able to divide numbers using the standard algorithm.
MANY DIFFERENT WAYS TO DIVIDE
What are possible methods for dividing (discuss with partner).
RECOGNIZING A DIVISION PROBLEM
𝒅𝒊𝒗𝒊𝒅𝒆𝒏𝒅÷𝒅𝒊𝒗𝒊𝒔𝒐𝒓 𝒅𝒊𝒗𝒊𝒔𝒐𝒓 √𝒅𝒊𝒗𝒊𝒅𝒆𝒏𝒅The answer is a quotient.
STEPS FOR THE STANDARD DIVISION ALGORITHM
Keep everything lined up in columns (preserve place value)
Be careful with calculations …there are so many ways to make a mistake
Use estimation strategies to test the reasonableness of your answer
Double check your work (if you are taking a test you will need to divide twice, at home check your work with a calculator).
PRACTICE WITH 2 DIGIT DIVISORS CARRYING OUT TO THE HUNDREDTHS PLACE
Write out our division problem putting one number in each square on your graph paper (holding place value)
You can multiply 27 times 1 – 9 to help you with the division problem. Work with your partner to complete the multiplication
Follow the steps using “dad, mom, sister, brother”1. Divide2. Multiply3. Subtract 4. Bring down
WHY USE THE STANDARD ALGORITHM?
The most efficient Works best for decimals
SUMMARIZE
What are important things to remember when dividing numbers?
RATE YOUR UNDERSTANDING
I will be able to divide numbers using the standard algorithm
HOMEWORK TONIGHT
PAGE 2 OF THE BLUE HOMEWORK PACKET!!