Presentation is loading. Please wait.

Presentation is loading. Please wait.

Monday, April 9 th Please complete Warm up Find the quotient 1. 12.44 ÷.22. 101.5 ÷ 5.

Similar presentations


Presentation on theme: "Monday, April 9 th Please complete Warm up Find the quotient 1. 12.44 ÷.22. 101.5 ÷ 5."— Presentation transcript:

1 Monday, April 9 th Please complete Warm up Find the quotient 1. 12.44 ÷.22. 101.5 ÷ 5

2 Reteach TOMORROW Retest WEDNESDAY

3 Homework for the next two weeks Signature by WEDNESDAY This is your homework for the next two weeks! If you would like to work ahead then you may do so!

4 When is the Math Superbowl

5 Morning Tutoring Get pass from me if you want to come in and review!

6 CRCT Review Everyday for two weeks we will be covering 1-2 topics from this semester. You will have a daily classwork grade. Every Friday will be game day!

7 Decimals and Fractions

8 Part 1: Decimals What rules do you remember?

9

10 Steps 1.Compare any TWO decimals at a time 2. fill in zeroes so that each number has the same amount of place values 3. Start at the left and compare the digits 4. Look for the first place where they are different and rank them. 5.Compare the next numbers using steps 1-4

11 1.Tia reported on a star for her science project that has a magnitude of 11.3. Maven reported on another star that has a magnitude of 11.03. Which star has the smaller magnitude? 2. It takes Pluto 246.7 years to orbit the Sun, and it takes Neptune 164.8 years. Which planet takes longer to orbit the Sun?

12 Take the cards and put them from least to greatest Partner Work

13 Addition and Subtraction 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”

14 Adding 1. 3.45 + 6.12 + 12.09 2. 14.56 + 6.7912

15 Subtracting 1. 14.03 – 6 2. 10.07 - 8.456

16 Problem Solving Your mom gave you exactly $20.00 to spend at the Braves Game. One hot dog costs $4.45, a Coke costs$2, Nachos costs $5.60 and Dip’n Dots costs $4.59, what will the bill come to? Will you have enough money to buy all the food?

17

18 Recipe 1.Write your decimals vertically 2.Multiply your two numbers 3. Add up the decimal places to the right of each number. 4. Answer to step 3 is the amount of places you move your decimal to the left.

19 Just Watch Find the product. 0.5  0.2 Multiply, Then place the decimal point. 0.5 0.2  1 decimal place + 1 decimal place2 decimal places 0.10

20 You Try! 1. 12.6 x 2.1 1.Write your decimals vertically 2.Multiply your two numbers 3. Add up the decimal places to the right of each number. 4. Answer to step 3 is the amount of places you move your decimal to the left.

21 Practice makes perfect 2..3 x.4 3. 1.34 x 2.5 4..07 x.8 Complete and then help others in your group!

22 What did Aladdin do wrong? Find the Product 3.4 x.03 3.4.03 =102 =1.02

23

24 Are you Ready for Some… Dividing A Monday Morning Party…. We’ve got Ms. Evans, the PP, and your minds, Let’s get these quotients started!

25 Divisor Quotient Remember! 0.15 0.75 5 Dividend Vocab Review

26 Recipe 1.Set up divisor and Dividend 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

27 Find the quotient. 0.84 ÷ 3 3 0.84 – 6 24 – 24 0 Place a decimal point in the quotient directly above the decimal point in the dividend. Divide as you would with whole numbers. 0.28 Just Watch #1

28 Find the quotient. 5.2 ÷ 1.3 1.3 5.2 Move decimal place over once for divisor Move decimal place over once for dividend Divide. 13 52 4 –52 0 5.2 ÷ 1.3 = 4 Dividend=5.2 1.3=Divisor

29 Find the quotient. 1. 6.6 ÷ 1.1 1.1 6.6 Move decimal over once in divisorMove decimal over once in dividend 1 Divide. 11 66 6 -66 0 6.6 ÷ 1.1 = 6

30 Practice makes perfect b. 0.72 ÷.3 c. 2.96 ÷.04 d..32 ÷ 8 Complete and then help others in your group!

31 What did Johnny Depp do wrong? Estimate 22.15 ÷ 5 4.43

32 Part 2 Fractions

33 3 types of fractions 1.Simple: value less than 1 2. Mixed: whole number and simple fraction. Value is greater than 1 3. Improper: Numerator is greater than the denominator. No whole numbers. Value greater than 1.

34 What did mickey do wrong?

35 How do we add when we don’t have common denominators?!?

36

37 Fractions that represent the same value are equivalent. Remember! To add or subtract unlike fractions, first rewrite them as equivalent fractions with a common denominator.

38 You can use any common denominator. But it will be easier to find the least common denominator to add and subtract unlike fractions. The least common denominator (LCD) is the least common multiple of the denominators.

39 Time to + and -!!! Steps for unlike denominators 1.Find the LCD for the two denominators by looking for LCM 2.Make equivalent fractions by multiplying both the numerator and denominator by the same number (to get LCD) 3. Add the numerators, leave your denominator 4.If needed, simplify

40 11 12 __ 3 8 – 11 12 __ 3 8 – 22 24 __ 9 24 __ Multiples of 8: 8, 16, 24, … The LCD is 24. Write equivalent fractions with a common denominator. Subtract. 13 24 __ Multiples of 12: 12, 24, …

41 4 7 __ 1 3 – 4 7 1 3 – 12 21 __ 7 21 __ Multiples of 3: 3, 6, 9, 12, 15, 18, 21, … The LCD is 21. Write equivalent fractions. Subtract. 5 21 __ Multiples of 7: 7, 14, 21, …

42 What did CL do wrong?

43 Add or subtract. Write each answer in simplest form. 1. +2. – 3. – 4. + 5. Bonnie is making oatmeal bars and the recipes calls for cup of brown sugar. If she has cup of brown sugar, how much more does she need? 3 8 __ 1 6 1 2 1 8 5 12 __ 1 6 1 6 1 8 3 4 1 3 13 24 __ 3 8 1 4 7 24 __ 5 12 __ cup

44 How do we add and subtract Mixed numbers?

45

46 2 3 __ 1 4 5 2 3 5 8 12 __ The LCD of 3 and 12 is 12. –1 1 4 __ – 1 3 12 __ ______ Write equivalent fractions with a denominator of 12. 4 5 12 __ Subtract the fractions and then the whole numbers. 5 – 1

47 1 2 __ 3 7 4 1 2 4 7 14 __ The LCD of 2 and 7 is 14. –1 3 7 __ – 1 6 14 __ ______ Write equivalent fractions with a denominator of 14. 3 1 14 __ Subtract the fractions and then the whole numbers. 4 – 1

48 Who did the problem correctly?

49

50 Renaming fractions I need to rename to have enough fourths to take away from Here’s how you do it! 1.Subtract 1 from your big 2. add your numerator to your denominator 3.Answer to step 2 is your new numerator

51 Lace up your shoes and let’s get ready to PRACTICE!!!!!!

52 1 6 __ 5 6 7 1 6 6 7 6 Rename 7 as 6 + 1 = 6 + +. –2 5 6 __ –2 5 6 __ ______ 4 2 6 __ Subtract the fractions and then the whole numbers. 1 6 __ 1 6 6 6 1 6 Write the answer in simplest form. = 4 1 3 __ 7 – 2

53 2 5 __ 7 10 __ 8 4 10 __ 7 14 10 __ Rename 8 as 7 + 1 = 7 + +. –6 7 10 __ –6 7 10 __ ______ ______ 1 7 10 __ Subtract the fractions and then the whole numbers. 4 10 __ 4 10 __ 10 __ 4 10 __ 10 is a multiple of 5, so 10 is a common denominator. 8 – 6

54 Summary In your groups, fill in the blanks If I go to subtract my fractions and there isn’t a large enough fraction to subtract from I must ____________one of my fractions. To do this I subtract 1 from my _____________ number. Next, I __________my numerator and denominator, this is my new ____________________. This whole process is called _______________________________.

55 Multiplying & dividing

56 Criss Cross Simplify You can simplify before you multiply! It’s called: Criss cross simplify http://www.youtube.com/watch?v=010 KyIQjkTk

57

58 Remember what the genie said Criss-cross multiply will save you from a headache!

59 1. Change mixed to improper 2.Criss-Cross Simplify 3.Multiply numerators 4.Multiply denominators 5.Simplify if needed 1. The Recipe Multiplying Mixed Fractions

60 You Try! Change to improper 1.2. 3.4.

61 1 1 4 __ 1 3 Write 1 as an improper fraction. 1 = 4 3 __ 1 3 1 3 1 4 4 3 1 4 4 3 _____ Multiply numerators. Multiply denominators. 4 12 __ 1 3 Write the answer in simplest form.

62 3 1 2 __ 4 5 Write 3 as an improper fraction. 3 = 7 2 __ 1 2 1 2 7 2 4 5 7 4 2 5 _____ Multiply numerators. Multiply denominators. 28 10 __ 14 5 __ Write the answer in simplest form. You can write the answer as a mixed number. 4 5 __ = 2

63 2 12 13 __ 3 8 Write 2 as an improper fraction. 2 = 19 8 __ 3 8 3 8 12 13 __ 19 8 __ 3 19 13 2 ______ Use the GCF to simplify before multiplying. 57 26 __ You can write the answer as a mixed number. 5 26 __ = 2 3 2 12 13 __ 19 8 __

64 Recall that multiplication by a whole number can be represented as repeated addition. For example, 4 5 = 5 + 5 + 5 + 5. You can multiply a whole number by a fraction using the same method. + + = 3 = 1414 __ 1414 1414 1414 3434 + + =

65 1. The Recipe 1. Keep your first fraction the way it is 2.“Flip” (find the Reciprocal) the second fraction 3.Change problem to multiplication 4.Reduce diagonally if possible 5.Multiply Numerator 6.Multiply Denominator

66 KFC Keep Flip Change

67 ÷ 7 8 7 __ 8 7 ÷ 7 = Rewrite as multiplication using the reciprocal of 7,. 1 7 __ Multiply by the reciprocal. 8 7 __ 1 7 8 1 7 ____ = The answer is in simplest form. = 8 49 __

68 ÷ 5 6 5 6 ÷ = Rewrite as multiplication using the reciprocal of,. 3 2 __ Simplify before multiplying. 5 6 __ 3 2 5 3 6 2 ____ = You can write the answer as a mixed number. = 5 4 __ 2 3 2 3 2 3 1 2 Multiply. = 1 1 4 __

69 You Try! 3. 2.

70 ANY QUESTIONS?!?!?!?!


Download ppt "Monday, April 9 th Please complete Warm up Find the quotient 1. 12.44 ÷.22. 101.5 ÷ 5."

Similar presentations


Ads by Google