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5 Minute Check Complete on the back of your homework. 1.65 x 34 2.98 x 16 3.187 x 67 4.785 x 975.

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Presentation on theme: "5 Minute Check Complete on the back of your homework. 1.65 x 34 2.98 x 16 3.187 x 67 4.785 x 975."— Presentation transcript:

1 5 Minute Check Complete on the back of your homework. 1.65 x 34 2.98 x 16 3.187 x 67 4.785 x 975

2 5 Minute Check Complete on the back of your homework. 1.65 x 34

3 5 Minute Check Complete on the back of your homework. 1.65 x 34 65 x 34 260 1950 2210

4 5 Minute Check Complete on the back of your homework. 2.98 x 16

5 5 Minute Check Complete on the back of your homework. 2.98 x 16 98 x16 588 980 1568

6 5 Minute Check Complete on the back of your homework. 3.187 x 67

7 5 Minute Check Complete on the back of your homework. 3.187 x 67 187 x 67 1309 11220 12529

8 5 Minute Check Complete on the back of your homework. 4.785 x 975

9 5 Minute Check Complete on the back of your homework. 4.785 x 975 785 x 975 3925 54950 70650 119525

10 5 Minute Check Complete on the back of your homework. 4.785 x 975 785 x 975 3925 54950 706500 765375

11 Friday, Aug 21 Review Lesson 2 Long Division

12 Objective: To understand long division.

13 Long Division Long Division is a special method for dividing larger numbers.

14 Long Division Long Division is a special method for dividing larger numbers. Long Division has four steps; Dividing, Multiplying, Subtracting, Bring down. Does McDonalds Sell Burgers?

15 Long Division What is 664 ÷ 2 = ? Dividend Divisor

16 Long Division What is 664 ÷ 2 = ? Before we begin, lets look at what we are asking. We are asking how many 2’s you subtract from 664 to get to zero. 664-2-2-2-2-2-2……….. = 0

17 Long Division What is 664 ÷ 2 = ? Remember – division is just a short hand version of subtraction.

18 Long Division What is 664 ÷ 2 = ? First need to rewrite the problem using the division bracket. 664 ÷ 2 = 2) 664 The divisor goes on the outside.

19 Long Division What is 664 ÷ 2 = ? Step 1 - Dividing 2) 664 How many times does 2 go into 6? Or another way to look at it is 2 x ? = 6.

20 Long Division What is 664 ÷ 2 = ? Step 1 - Dividing 2) 664 How many times does 2 go into 6? Or another way to look at it is 2 x ? = 6. 1 x 2 2 2 x 2 4 2 x 3 6 2 x 4 8

21 Long Division What is 664 ÷ 2 = ?Step 2 - ? 3 2) 664 1 x 2 2 2 x 2 4 2 x 3 6 2 x 4 8

22 Long Division What is 664 ÷ 2 = ? Step 2 - Multiplying 3 2) 664 3 x 2 = ? 1 x 2 2 2 x 2 4 2 x 3 6 2 x 4 8

23 Long Division What is 664 ÷ 2 = ? Step 3 - ? 3 2) 664 6 1 x 2 2 2 x 2 4 2 x 3 6 2 x 4 8

24 Long Division What is 664 ÷ 2 = ? Step 3 - Subtracting 3 2) 664 -6 0 1 x 2 2 2 x 2 4 2 x 3 6 2 x 4 8

25 Long Division What is 664 ÷ 2 = ? Step 4 - ? 3 2) 664 -6 0 1 x 2 2 2 x 2 4 2 x 3 6 2 x 4 8

26 Long Division What is 664 ÷ 2 = ? Step 4 – Bring down 3 the next digit. 2) 664 -6 06 Then repeat. 1 x 2 2 2 x 2 4 2 x 3 6 2 x 4 8

27 Long Division What is 664 ÷ 2 = ? Step 1 - Dividing 3 2) 664 -6 06 1 x 2 2 2 x 2 4 2 x 3 6 2 x 4 8

28 Long Division What is 664 ÷ 2 = ? Step 2 - Multiplying 33 2) 664 -6 06 1 x 2 2 2 x 2 4 2 x 3 6 2 x 4 8

29 Long Division What is 664 ÷ 2 = ? Step 2 - Multiplying 33 2) 664 -6 06 -6 1 x 2 2 2 x 2 4 2 x 3 6 2 x 4 8

30 Long Division What is 664 ÷ 2 = ? Step 3 - Subtracting 33 2) 664 -6 06 -6 1 x 2 2 2 x 2 4 2 x 3 6 2 x 4 8

31 Long Division What is 664 ÷ 2 = ? Step 3 - Subtracting 33 2) 664 -6 06 -6 0 1 x 2 2 2 x 2 4 2 x 3 6 2 x 4 8

32 Long Division What is 664 ÷ 2 = ? Step 4 – Bring the 33 the next digit. 2) 664 -6 06 -6 0 1 x 2 2 2 x 2 4 2 x 3 6 2 x 4 8

33 Long Division What is 664 ÷ 2 = ? Step 4 – Bring the 33 the next digit. 2) 664 -6 06 -6 04 Repeat. 1 x 2 2 2 x 2 4 2 x 3 6 2 x 4 8

34 Long Division What is 664 ÷ 2 = ? 33 2) 664 -6 06 -6 04 1 x 2 2 2 x 2 4 2 x 3 6 2 x 4 8

35 Long Division What is 664 ÷ 2 = ? 332 2) 664 -6 06 -6 04 1 x 2 2 2 x 2 4 2 x 3 6 2 x 4 8

36 Long Division What is 664 ÷ 2 = ? 332 2) 664 -6 06 -6 04 -4 1 x 2 2 2 x 2 4 2 x 3 6 2 x 4 8

37 Long Division What is 664 ÷ 2 = 332 332 2) 664 -6 06 -6 04 -4 0 On the worksheet, this is the correct way to show work. Notice that every digit in the dividend has a digit above it.

38 Long Division What is 248÷ 4 = ?

39 Long Division What is 248÷ 4 = ? Step 1 - Divide 4) 248 1 x 4 4 2 x 4 8 3 x 4 12 4 x 4 16 5 x 4 20 6 x 4 24 7 x 4 28

40 Long Division What is 248÷ 4 = ? Step 2 - Multiply 0 4) 248 0 1 x 4 4 2 x 4 8 3 x 4 12 4 x 4 16 5 x 4 20 6 x 4 24 7 x 4 28

41 Long Division What is 248÷ 4 = ? Step 3 - Subtract 0 4) 248 -0 1 x 4 4 2 x 4 8 3 x 4 12 4 x 4 16 5 x 4 20 6 x 4 24 7 x 4 28

42 Long Division What is 248÷ 4 = ? Step 4 – Bring Down 0 4) 248 -0 2 1 x 4 4 2 x 4 8 3 x 4 12 4 x 4 16 5 x 4 20 6 x 4 24 7 x 4 28

43 Long Division What is 248÷ 4 = ? Step 1 - Divide 0 4) 248 -0 24 1 x 4 4 2 x 4 8 3 x 4 12 4 x 4 16 5 x 4 20 6 x 4 24 7 x 4 28

44 Long Division What is 248÷ 4 = ? Step 2 - Multiply 06 4) 248 -0 24 1 x 4 4 2 x 4 8 3 x 4 12 4 x 4 16 5 x 4 20 6 x 4 24 7 x 4 28

45 Long Division What is 248÷ 4 = ? Step 3 - Subtract 06 4) 248 -0 24 1 x 4 4 2 x 4 8 3 x 4 12 4 x 4 16 5 x 4 20 6 x 4 24 7 x 4 28

46 Long Division What is 248÷ 4 = ? Step 4 – Bring Down 06 4) 248 -0 24 -24 0 1 x 4 4 2 x 4 8 3 x 4 12 4 x 4 16 5 x 4 20 6 x 4 24 7 x 4 28

47 Long Division What is 248÷ 4 = ? Step 1 - Divide 06 4) 248 -0 24 -24 08 1 x 4 4 2 x 4 8 3 x 4 12 4 x 4 16 5 x 4 20 6 x 4 24 7 x 4 28

48 Long Division What is 248÷ 4 = ? Step 2 - Multiply 062 4) 248 -0 24 -24 08 1 x 4 4 2 x 4 8 3 x 4 12 4 x 4 16 5 x 4 20 6 x 4 24 7 x 4 28

49 Long Division What is 248÷ 4 = ? Step 3 - Subtract 062 4) 248 -0 24 -24 08 8 1 x 4 4 2 x 4 8 3 x 4 12 4 x 4 16 5 x 4 20 6 x 4 24 7 x 4 28

50 Long Division What is 248÷ 4 = ? Step 4 – Bring Down 062 4) 248 -0 24 -24 08 -8 0 No more digits to bring down. 1 x 4 4 2 x 4 8 3 x 4 12 4 x 4 16 5 x 4 20 6 x 4 24 7 x 4 28

51 Long Division What is 248÷ 4 = 62 062 4) 248 -0 24 -24 08 1 x 4 4 2 x 4 8 3 x 4 12 4 x 4 16 5 x 4 20 6 x 4 24 7 x 4 28

52 Long Division What is 165÷ 4 = ?

53 Long Division What is 165÷ 4 = ? 4) 165 1 x 4 4 2 x 4 8 3 x 4 12 4 x 4 16 5 x 4 20 6 x 4 24 7 x 4 28

54 Long Division What is 165÷ 4 = ? 0 4) 165 -0 16 1 x 4 4 2 x 4 8 3 x 4 12 4 x 4 16 5 x 4 20 6 x 4 24 7 x 4 28

55 Long Division What is 165÷ 4 = ? 04 4) 165 -0 16 -16 05 1 x 4 4 2 x 4 8 3 x 4 12 4 x 4 16 5 x 4 20 6 x 4 24 7 x 4 28

56 Long Division What is 165÷ 4 = ? 04 4) 165 -0 16 -16 05 1 x 4 4 2 x 4 8 3 x 4 12 4 x 4 16 5 x 4 20 6 x 4 24 7 x 4 28

57 Long Division What is 165÷ 4 = ? 041 4) 165 -0 16 -16 05 - 4 1 1 x 4 4 2 x 4 8 3 x 4 12 4 x 4 16 5 x 4 20 6 x 4 24 7 x 4 28

58 Long Division What is 165÷ 4 = 41 R1 = 41 ¼ 041 4) 165 -0 16 -16 05 - 4 1 On the worksheet, this is the correct way to show work. Notice that every digit in the dividend has a digit above it. Answers can be shown in fractions, if needed.

59 Long Division What is 316÷ 3 = ?

60 Long Division What is 316÷ 3 = ? 3) 316 1 x 3 3 2 x 3 6 3 x 39 4 x 312 5 x 315 6 x 3 18 7 x 3 21 8 x 3 24

61 Long Division What is 316÷ 3 = ? 1 3) 316 -3 01 1 x 3 3 2 x 3 6 3 x 39 4 x 312 5 x 315 6 x 3 18 7 x 3 21 8 x 3 24

62 Long Division What is 316÷ 3 = ? 1 3) 316 -3 01 1 x 3 3 2 x 3 6 3 x 39 4 x 312 5 x 315 6 x 3 18 7 x 3 21 8 x 3 24

63 Long Division What is 316÷ 3 = ? 10 3) 316 -3 01 - 0 16 1 x 3 3 2 x 3 6 3 x 39 4 x 312 5 x 315 6 x 3 18 7 x 3 21 8 x 3 24

64 Long Division What is 316÷ 3 = ? 10 3) 316 -3 01 - 0 16 1 x 3 3 2 x 3 6 3 x 39 4 x 312 5 x 315 6 x 3 18 7 x 3 21 8 x 3 24

65 Long Division What is 316÷ 3 = ? 105 3) 316 -3 01 - 0 16 -15 1 Answer ? 1 x 3 3 2 x 3 6 3 x 39 4 x 312 5 x 315 6 x 3 18 7 x 3 21 8 x 3 24

66 Long Division 1 x 3 3 2 x 3 6 3 x 39 4 x 312 5 x 315 6 x 3 18 7 x 3 21 8 x 3 24

67 Long Division What is 457÷ 12 = ? Do this on your own.

68 Long Division 1 x 1212 2 x 12 24 3 x 12 36 4 x 12 48 5 x 12 60 6 x 1272 7 x 12 84 8 x 1296

69 Long Division What is 535÷ 25 = ? Do this on your own.

70 Long Division

71

72 Math Magic! Think of any number and write it down.

73 Long Division Math Magic! Think of any number and write it down. Double it.

74 Long Division Math Magic! Think of any number and write it down. Double it. Add 10.

75 Long Division Math Magic! Think of any number and write it down. Double it. Add 10. Divide by 2.

76 Long Division Math Magic! Think of any number and write it down. Double it. Add 10. Divide by 2. Subtract your original number.

77 Long Division Math Magic! 5

78 Long Division Agenda Notes Homework – Homework Practice R.2 Due by the end of class


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