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.
&

4. Spin & think!

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

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.
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?
SUBTRACTION
ADDITION
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.
Activity 2

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

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

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

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

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

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

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

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
QUESTIO
N
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”