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- Slides: 98
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5 Minute Check � 7 x 2
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Skills Practice NS 1. 2 �
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Skills Practice NS 1. 2 � 3 x 3
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Skills Practice NS 1. 2 � Reminder – anytime the top number is one less than the bottom number, it is simplified.
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Skills Practice NS 1. 2 � 2 x 5
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Skills Practice NS 1. 2 � 5 x 19
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Skills Practice NS 1. 2 � 3 x 11
I am a three digit number. My tens digit is five more than my ones digit. My hundreds digit is eight less than my tens digit. What number am I?
I am a three digit number. My tens digit is five more than my ones digit. My hundreds digit is eight less than my tens digit. What number am I? ? 94 ? 83 ? 72 ? 61 ? 50
I am a three digit number. My tens digit is five more than my ones digit. My hundreds digit is eight less than my tens digit. What number am I? 194 ? 83 ? 72 ? 61 ? 50
Tuesday, Sept 18 NS 1 Lesson 3 Dividing Fractions
Dividing Fractions Objective: To understand how to divide fractions. Standard: (6. NS. 1) I can multiply and divide two fractions. I can solve word problems involving the multiplication and division of fractions by fractions.
Dividing Fractions Dividing fractions is the same as dividing whole numbers. 9 ÷ 2 is asking how many groups of 2 are there in 9 somethings
Dividing Fractions Dividing fractions is the same as dividing whole numbers. 9 ÷ 2 is asking how many groups of 2 are there in 9 somethings group of 2 How many groups can we make?
Dividing Fractions � 9 somethings group of 2
Dividing Fractions � 1 something
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Dividing Fractions Now we will learn the traditional method for dividing fractions. To divide a number by a fraction, we first need to find the reciprocal of the fraction. Sometimes the reciprocal is called the inverse.
Dividing Fractions To divide a number by a fraction, we first need to find the reciprocal of the fraction. Reciprocal: Any two numbers with a product of one.
Dividing Fractions To divide a number by a fraction, we first need to find the reciprocal of the fraction. What is the reciprocal of 3? (What number can we multiply 3 by to get 1? )
Dividing Fractions � 1
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Dividing Fractions What is the reciprocal of 10? (What number can we multiply 10 by to get 1? )
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Dividing Fractions What is the reciprocal of 53?
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Dividing Fractions What is the reciprocal of 112?
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Dividing Fractions To divide by a fraction: multiply by the reciprocal and simplify.
Dividing Fractions Dividing fractions is as easy as pie, Just flip the second fraction and multiply.
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Dividing Fractions � 2 somethings
Dividing Fractions � 2 somethings
Dividing Fractions � 2 somethings
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Dividing Fractions � Write the expression with the flipped fraction under the original expression, then multiply.
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Dividing Fractions � Reminder – when you have an improper fraction this step is to be included.
Math Make the equation true by filling in the boxes using the digits 1 -9 no more than Challenge one time each. ÷ = The first team with a correct answer wins.
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Dividing Fractions � GCF of 5 and 70.
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Dividing Fractions � 8 x 2
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Dividing Fractions Rachel took 12 pies to a family gathering. If each pie is cut into 6 equal pieces, how many slices will there be?
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Dividing Fractions Megan’s weight is 3 times the weight of her brother. If Megan weighs 90 lbs, how much does her brother weigh?
Dividing Fractions Megan’s weight is 3 times the weight of her brother. If Megan weighs 90 lbs, how much does her brother weigh? Megan = 3 x brother’s weight 90 = 3 x brother’s weight 3 times what number equals 90?
Dividing Fractions Megan’s weight is 3 times the weight of her brother. If Megan weighs 90 lbs, how much does her brother weigh? Megan = 3 x brother’s weight 90 = 3 x brother’s weight 3 times what number equals 90? 30 Can we set this up as a division problem?
Dividing Fractions Megan’s weight is 3 times the weight of her brother. If Megan weighs 90 lbs, how much does her brother weigh? Megan = 3 x brother’s weight 90 = 3 x brother’s weight 3 times what number equals 90? 30 Can we set this up as a division problem? 90 ÷ 3 = brother’s weight
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Dividing Fractions � She did not multiply by the reciprocal of 4. 8 9 ÷ 4 8 9 x 1 4 8 36 = = 2 9
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Dividing Fractions Skills Practice NS 1. 3 Due Wednesday, Sept 19 #5 and #6 are the same NS 1 & Retake Assessments Thursday, Sept 20
Math Make the equation true by filling in the boxes using the digits 1 -9 no more than Challenge one time each. The first team with a correct answer wins.