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Tuesday, October 18 th. Warm Up. Please take out homework and complete warm up Did you write down your homework?. Show the absolute value of 4 on the number line Find the product . Schedule for the Week. Tuesday: Dividing fractions and decimals - PowerPoint PPT Presentation
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Tuesday, October 18th • Please take out homework and
complete warm up• Did you write down your homework?
1. Show the absolute value of 4 on the number line
2. Find the product
Warm Up
3 14 27x
Schedule for the WeekTuesday: Dividing fractions and decimals
Wednesday: (sub) multiplying and dividing fractions word problems * study guide Thursday: (field trip) Review Study guide, Witches Brew due Friday:
Teacher Project DUE-present Projects x and ÷ decimals due
Weekly review dueMONDAY IS TEST
A little Riddle….
“Line up your decimals, add in your zeroes, find the sum, don’t be a bum…..line up your decimals, add in your zeroes, now it’s time to subtract, don’t get this out of wack”
Dividing Decimals 1. Set up divisor and dividend correctly 2. Look at the Divisor, move decimal place over to make a whole number
3. However many places you moved the decimal in step 2, you move the decimal in the dividend 4.Divide as you would with a whole number
Just Watch 1.80 ÷ .06
HomeworkAnswers
Complete your assigned number
on your whiteboard
Multiplication Extentionon own notes
Multiplying Mixed Numbers
YOU HAVE TO MAKE BOTH FRACTIONS INTO
IMPROPERFRACTIONS
To write a mixed number as an improper fraction, start with the whole number, multiply by the denominator, and add the numerator. Use the same denominator.
Remember!
15__1 1 • 5 + 1
5_________ 6
5__= =
• 114__ 1
3__
Write 1 as an improper fraction. 1 =
43__1
3__1
3__1
4__ 4
3__•
1 • 44 • 3_____ Multiply numerators. Multiply denominators.
412__
13__ Write the answer in simplest form.
Let’s Try Together!
You try!a.
b.
1 63 44 7
1 17 23 2
Todays MissionDividing fractions
Who remembers?
1 22 3
KFCKeep
Flip
Change
Reciprocals can help you divide by fractions. Two numbers are reciprocals if their product is 1.
Word of the Day
3 44 3
Find the Reciprocal of each number
a. 5
b.
c.
d.
34
8912
1. The Recipe1. Keep your first fraction the way
it is2. “Flip” (find the Reciprocal) the
second fraction3. Change problem to
multiplication4. Reduce diagonally if possible5. Multiply Numerator6. Multiply Denominator
÷ 7 87__
87__ ÷ 7 = •
Rewrite as multiplication using thereciprocal of 7, . 1
7__
Multiply by the reciprocal.
87
__ 17__
8 • 17 • 7____ =
The answer is in simplest form.
=
849__
Just Watch
2. You Try! a.
b.
6 57 49
2 95
Dividing Mixed Numbers
YOU MUST MAKE BOTH YOUR FRACTIONS INTO IMPROPER FRACTIONS
a. 2 ÷ 1 34__
Write the mixed numbers asimproper fractions. 2 = and 1 = 13
12__
Rewrite as multiplication.
11 • 124 • 13______
=
You can write the answer as a mixed number.
=
3313__
112__
34__
1
3Simplify before multiplying.
= 2
713__
2 ÷ 1 = ÷34
__ 112__ 11
4__ 13
12__ 11
4__
112__
114__ 12
13__ •
Multiply. =
Let’s try together!
You Try! b.
c.
1 26 52 3
3 18 34 7
This is sooooeasy!
Project #1: Witch’s Brew
Mix Up
When is it due?Thursday, October 20th
*If you complete it correctly, I will make the witches brew for
you on Friday!
Project #2: Teacher tool
You must make an instructional tool to teach the four different operations using fractions
20 points per operation (+, -, x, and ÷) You will present this project to the class You may work with 1 other person You can use: Poster, foldable, PowerPoint, game or……?
This is due Friday
ANY QUESTIONS?!?!?!?!
Worktime Work on
Witches Brew (+, -, and x)
Teacher Tool
RememberTo show
work