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MATH UNIT 2 Dividing Decimals by Whole Numbers (5.NBT.7)
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BIG IDEA! We can understand and explain the processes of adding, subtracting, multiplying, and dividing decimals to the thousandths. 5.NBT.7
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ESSENTIAL QUESTION Why is the ticket price on an item different from the price at the register?
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OBJECTIVE (LEARNING GOAL) By the End of the Lesson(B.E.U.), we will divide decimals by whole numbers. Pair/Share
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APK: WHAT DO WE ALREADY KNOW? 3,500 ÷ 50 = 70 Which number is the dividend? Which is the divisor? Which is the quotient ?
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APK: WHAT DO WE ALREADY KNOW?
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IT’S IMPORTANT TO KNOW… Learning to divide decimals by whole numbers will help you do well on tests. It will also help you divide money! What other ways can you think of? Pair/Share
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CONCEPT DEVELOPMENT Dividing a decimal by a whole number is similar to dividing whole numbers! To divide a decimal by a whole number… 1. IGNORE THE DECIMAL POINT 2. Use division or long division (Does McDonald Sell Cheese Burgers?) 3. Then re-insert the decimal point in the same spot as the dividend (the number being divided).
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I DO: LET’S DO SOME EXAMPLES Divide 9.1 by 7 1. Ignore the decimal 13 2. Use Long Division (DMSCB) 7 ) 9.1 3. Put the decimal in the quotient 1.3 (directly above the decimal in the dividend) 7 )9.1
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REMEMBER You can use multiplication to check your answer: multiply the quotient by the divisor. If the answer does not come out evenly, (without a remainder) round the quotient to a specified place-value position.
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LET’S DO MORE… WE DO White Boards Page 296 #1 Pg. 297 #2
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YOU DO… Page 298 # 9-19 odd Page 298 # 21 & 23 word problems When you finish, pair up and compare your answers with a partner. We will correct them all together.
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CFU: LET’S CHECK FOR UNDERSTANDING What is the BIG IDEA for this lesson? What is our Objective (Learning Goal)? What are the steps to divide a decimal by a whole number?
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