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Multiplication and Division of Integers Share out… If your partner had an idea about multiplying or dividing with negative numbers, please share their.

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Presentation on theme: "Multiplication and Division of Integers Share out… If your partner had an idea about multiplying or dividing with negative numbers, please share their."— Presentation transcript:

1

2 Multiplication and Division of Integers

3 Share out… If your partner had an idea about multiplying or dividing with negative numbers, please share their thought. Hey- your idea was great!

4 Here’s a way I can Remember! / To remember whether your answer will be positive or negative when MULTIPLYING or DIVIDING, we’ll use: Mr. Multiplivision

5 When multiplying Integers, cover the Two signs you are using Ex.: 5 (-3) What sign is left uncovered? Negative, - That is the sign of The answer = -15 Choral Response

6 Practice … under time! (-10)(3) = 20  -5 = -12  -6 = (raffle tickets…)

7 1:00

8 0:59

9 0:58

10 0:57

11 0:56

12 0:55

13 0:54

14 0:53

15 0:52

16 0:51

17 0:50

18 0:49

19 0:48

20 0:47

21 0:46

22 0:45

23 0:44

24 0:43

25 0:42

26 0:41

27 0:40

28 0:39

29 0:38

30 0:37

31 0:36

32 0:35

33 0:34

34 0:33

35 0:32

36 0:31

37 0:30

38 0:29

39 0:28

40 0:27

41 0:26

42 0:25

43 0:24

44 0:23

45 0:22

46 0:21

47 0:20

48 0:19

49 0:18

50 0:17

51 0:16

52 0:15

53 0:14

54 0:13

55 0:12

56 0:11

57 0:10

58 0:09

59 0:08

60 0:07

61 0:06

62 0:05

63 0:04

64 0:03

65 0:02

66 0:01

67 0:00

68 Division Good News: It’s not any different! Ex.: -48  (-4) = + 12

69 Reminder: Equal means it works both ways! 

70 / (4)(-7)  (-2) / First, (4)(-7) = - 28 / Finish it! (-28)  (-2) / (4)(-7)  (-2) / First, (4)(-7) = - 28 / Finish it! (-28)  (-2) Answer: 14

71 (-56  7)  - 2 5  - 7  -6 = 4 = 210 = - 135


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