Math 4 Q1 W8 (Perform a series of two or more operations applying Multiplication, Division, Addition, Subtraction (MDAS) correctly)pptx.pptx

mathematics 4

1. MATHEMATICS 4 JHAY VIE A. NISMAL Andres Mariano ES

2. LEARNING COMPETENCY Quarter1 Week 8 Perform a series of two or more operations applying Multiplication, Division, Addition, Subtraction (MDAS) correctly. M4NS-Ii-21

3. Perform the operation as indicated in the wheel where the arrow stop. & SPIN THINK

4. Spin & think!

5. 4 + 4 ÷ 4 x 4 – 4 =? Answer: _____________ MATH Challenge

6. SERIES OF OPERATIONS

7. In performing series of two or more operations, the MDAS rule must be followed. M - Multiplication D - Division A - Addition S - Subtraction

8. The rule says that: - Perform multiplication or division first in the order as they come from left to right. M D A S or

9. The rule says that: - Next, perform addition or subtraction in the order as they come from left to right. M D A S or

10. - multiply or divide first in the order as they come from left to right. M 20 x 4 ÷ 8 = 80 = 10 D A S 4 8 ÷

11. - multiply or divide first in the order as they come from left to right. M 36 9 = 4 = 16 D A S 4 x ÷ x 4

12. - add or subtract in the order as they come from left to right. M 27 8 = 35 = 23 D A S + - 12 - 12

13. - add or subtract in the order as they come from left to right. M 65 34 = 31 = 50 D A S - + 19 + 19

14. = 4 4 + 4 ÷ x 4 Rule 1: multiply or divide from left to right Rule 2: add or subtract from left to right 4 = M D A S - 4 1 4 + x 4 - 4 = 4 8 = - 4 = 4 + x + - 4 - D M

15. 63 7 + 8 ÷ x 12 = 9 + Rule 1: multiply or divide from left to right Rule 2: add or subtract from left to right 8 x 12 96 x = 9 + = 105 M D A S M D

16. 96 63 + 9 ÷ - 12 = Rule 1: multiply or divide from left to right Rule 2: add or subtract from left to right 5 x 7 96 + - 5 x 12 x 60 = 96 + 7 - = 103 M D A S - 60 = 43 + = M D

17. 87 12 x 6 - + 18 Rule 1: multiply or divide from left to right Rule 2: add or subtract from left to right M D A S - 21 72 87 - + 18 - 21 - 15 + 18 - 21 + 33 - 21 12 A S = = = = S A

18. In each of the given expressions, answer the question that follows. TELL ME WHAT TO DO! Activity 1

19. Tell me what to do! 4 x 18 + 5 What operation will be performed first? MULTIPLICATION ADDITION

20. What operation will be executed last? SUBTR ACTION ADDIT ION 35 - 27 + 60 ÷ 10 Tell me what to do!

21. What operation will be carried out next? DIVISION ADDITION 28 + 73 – 16 x 4 ÷ 8 28 + 73 – 64 ÷ 8 Tell me what to do!

22. What operation will be accomplished next? ADDITION SUBTRACTION 17 + 8 x 15 – 9 17 + 120 – 9 Tell me what to do!

23. What operation will be done first? MULTIPLICATION DIVISION 26 ÷ 13 x 7 – 12 + 25 Tell me what to do!

24. Perform the indicated series of operations. Think and perform Activity 2

25. Perform the indicated series of operations. 1.) 36 – 19 + 25 Think and perform

26. 1.) 36 – 19 + 25 = 42 = 17 Think and perform + 25

27. Perform the indicated series of operations. 2.) 8 x 11 ÷ 8 Think and perform

28. 2.) 8 x 11 ÷ 8 = 11 = 88 Think and perform ÷ 8

29. Perform the indicated series of operations. 3.) 152 + 85 – 48 + 21 Think and perform

30. 3.) 152 + 85 – 48 + 21 = 237 = 210 = 189 Think and perform – 48 + 21 + 21

31. Perform the indicated series of operations. 4.) 4 x 90 - 5 x 61 Think and perform

32. 4.) 4 x 90 – 5 x 61 360 = 55 = 360 – Think and perform – 5 x 61 305 =

33. Perform the indicated series of operations. 5.) 100 - 15 ÷ 3 x 9 + 12 Think and perform

34. 5.) 100 – 15 ÷ 3 x 9 + 12 x 9 + 12 = 100 – = 67 = 55 Think and perform 5 100 – 45 + 12 + 12 =

35. REMEMBER In performing series of two or more operations, we need to follow the MDAS rule. M - Multiplication D - Division A - Addition S - Subtraction

36. REMEMBER MDAS Rules: -(1) Multiply or divide first in the order as they come from left to right; -Next, (2) add or subtract in the order as they come from left to right.

37. & TIME QUESTION ANSWER

38. HOME LEARNING TASK Answer What I Can Do and Assessment on page 45 of your Self-Learning Module.

39. FOOD FOR THOUGHT! “ The best way of learning about anything is by doing ” - RICHARD BRANSON

40. “ANUMAN ANG SITWASYON , TULOY ANG EDUKASYON ”