MATH CLASS
GRADE 4
PERFORMING
SERIES OF
OPERATIONS
MULTIPLY
3 x 10 5 x 7
8 x 8 10 x 10
9 x 6 7 x 8
6 x 5 4 x 9
DIVIDE
36 ÷ 9 20 ÷ 4
27 ÷ 3 18 ÷ 8
35 ÷ 5 49 ÷ 7
64 ÷ 8 50 ÷ 5
ADD
9 + 9 10 + 6
7+ 8 9 + 8
4 + 7 8 + 5
4 + 4 6 + 8
SUBTRACT
10 - 7 9 - 6
20 - 5 19 - 10
14 - 7 11 - 5
12 - 4 16 - 8
4 PICS 1 WORD
Add
4 PICS 1 WORD
Divide
4 PICS 1 WORD
Multiply
4 PICS 1 WORD
Subtract
4 PICS 1 WORD
Subtract
4 PICS 1 WORD
Operations
Have you experienced being
absent from school because
you were sick? How did you
feel if you miss the lesson
/test?
Tessie was absent because
she was sick. When she went
back to school, she had to
take the test. Items for the
test given are shown below.
2 x 6 ÷ 4 5 x 4 -16 + 8
9 – 7 + 3 18 – 12 ÷ 6 +
7
18 – 12 + 2 16 ÷ 4 x 5 –
7+8
● Do you think Tessie can
answer the test correctly? Why
?
● What do you think will she do?
● If you were her classmate,
what would you do to help her?
● How do you feel if you help
someone?
Let’s help Tessie solve
her problem.
2 x 6 ÷ 4 5 x 4 -16 ÷ 8
9 – 7 + 3 18 – 12 ÷ 6 +
7
18 – 12 ÷ 2 16 ÷ 4 x 5 –
7+8
Let’s help Tessie solve
her problem.
2 x 6 ÷ 4
=12 ÷ 4
= 3
9 – 7 + 3
= 2 + 3
= 5
18 – 12 ÷ 2
= 18 - 6
= 6
5 x 4 -16 ÷ 8
= 20 – 16 ÷ 8
= 20 – 2
= 22
18 – 12 ÷ 6 + 7
= 18 – 2 + 7
= 16 + 7
= 23
16 ÷ 4 x 5 – 7+8
= 4 x 5 – 7 + 8
= 20 – 7 + 8
= 13 + 8
= 21
Did you get the correct
answer?
Why don’t we have the
same answer to some
items?
What are the operations
used in each item?
In series of
operations, certain
rules must be
followed to arrive at
one specific
The MDAS rule
must be followed
correctly to get the
right answer.
The MDAS stands for
the four basic
operations –
Multiplication, Division,
Addition and
Subtraction.
Multiply or
divide first in
the order as
they come
from left to
right.
1
Add or
subtract in the
order as they
come from left
to right.
2
Remember
Do first all Multiplication
or Division before you do
Addition or Subtraction.
Let’s solve this
expression.
35 – 6 x
3
35 – 18
17
18-
12÷6+7
18-2+7
16+7
23
How do you perform series of
operation?
What is MDAS Rule?
Multiply or
divide first in
the order as
they come
from left to
right.
1
Add or
subtract in the
order as they
come from left
to right.
2
Group Activity
Group 1 : Evaluate the following
expressions.
1. 12 ÷ 3 + 8 = N
2. 84 ÷ 3 x 4 = N
3. 76 – 8 + 5 = N
4. 9 x 9 ÷ 3 – 9 + 6 = N
5. 16 ÷ 4 X 5 – 7 + 8 = N
Group Activity
Group 2 : Write the correct symbols
in the box to make the expression
right.
1.60 _____ 42 _____ 14
= 60 _____ 3
= 57
2. 16 _____ 8 ____ 4
= 16 _____ 2
= 8
Group Activity
Group 3 : Use the digits 5, 6,7,and 8
to make the expression result to 39.
_____ x _____ - _____ + _____ = 39
1. 4 x 3 + 8
2. 84 ÷ 3 x 4
3. 76 – 8 + 5
4. 7 x 9 ÷ 3 – 7 +
8
5. 6 x 4 + 7 – 8 ÷
2
CREDITS: This presentation template was created by Slidesgo, including
icons by Flaticon, infographics & images by Freepik
That’s all for today kids.
THANK
YOU

MDAS (Multiply, Divide, Add ànd Subtract 37.pptx

  • 1.
  • 2.
  • 3.
    MULTIPLY 3 x 105 x 7 8 x 8 10 x 10 9 x 6 7 x 8 6 x 5 4 x 9
  • 4.
    DIVIDE 36 ÷ 920 ÷ 4 27 ÷ 3 18 ÷ 8 35 ÷ 5 49 ÷ 7 64 ÷ 8 50 ÷ 5
  • 5.
    ADD 9 + 910 + 6 7+ 8 9 + 8 4 + 7 8 + 5 4 + 4 6 + 8
  • 6.
    SUBTRACT 10 - 79 - 6 20 - 5 19 - 10 14 - 7 11 - 5 12 - 4 16 - 8
  • 7.
    4 PICS 1WORD Add
  • 8.
    4 PICS 1WORD Divide
  • 9.
    4 PICS 1WORD Multiply
  • 10.
    4 PICS 1WORD Subtract
  • 11.
    4 PICS 1WORD Subtract
  • 12.
    4 PICS 1WORD Operations
  • 13.
    Have you experiencedbeing absent from school because you were sick? How did you feel if you miss the lesson /test?
  • 14.
    Tessie was absentbecause she was sick. When she went back to school, she had to take the test. Items for the test given are shown below.
  • 15.
    2 x 6÷ 4 5 x 4 -16 + 8 9 – 7 + 3 18 – 12 ÷ 6 + 7 18 – 12 + 2 16 ÷ 4 x 5 – 7+8
  • 16.
    ● Do youthink Tessie can answer the test correctly? Why ? ● What do you think will she do? ● If you were her classmate, what would you do to help her? ● How do you feel if you help someone?
  • 17.
    Let’s help Tessiesolve her problem. 2 x 6 ÷ 4 5 x 4 -16 ÷ 8 9 – 7 + 3 18 – 12 ÷ 6 + 7 18 – 12 ÷ 2 16 ÷ 4 x 5 – 7+8
  • 18.
    Let’s help Tessiesolve her problem. 2 x 6 ÷ 4 =12 ÷ 4 = 3
  • 19.
    9 – 7+ 3 = 2 + 3 = 5
  • 20.
    18 – 12÷ 2 = 18 - 6 = 6
  • 21.
    5 x 4-16 ÷ 8 = 20 – 16 ÷ 8 = 20 – 2 = 22
  • 22.
    18 – 12÷ 6 + 7 = 18 – 2 + 7 = 16 + 7 = 23
  • 23.
    16 ÷ 4x 5 – 7+8 = 4 x 5 – 7 + 8 = 20 – 7 + 8 = 13 + 8 = 21
  • 24.
    Did you getthe correct answer? Why don’t we have the same answer to some items? What are the operations used in each item?
  • 25.
    In series of operations,certain rules must be followed to arrive at one specific
  • 26.
    The MDAS rule mustbe followed correctly to get the right answer.
  • 27.
    The MDAS standsfor the four basic operations – Multiplication, Division, Addition and Subtraction.
  • 28.
    Multiply or divide firstin the order as they come from left to right. 1
  • 29.
    Add or subtract inthe order as they come from left to right. 2
  • 30.
    Remember Do first allMultiplication or Division before you do Addition or Subtraction.
  • 31.
    Let’s solve this expression. 35– 6 x 3 35 – 18 17 18- 12÷6+7 18-2+7 16+7 23
  • 32.
    How do youperform series of operation? What is MDAS Rule?
  • 33.
    Multiply or divide firstin the order as they come from left to right. 1
  • 34.
    Add or subtract inthe order as they come from left to right. 2
  • 35.
    Group Activity Group 1: Evaluate the following expressions. 1. 12 ÷ 3 + 8 = N 2. 84 ÷ 3 x 4 = N 3. 76 – 8 + 5 = N 4. 9 x 9 ÷ 3 – 9 + 6 = N 5. 16 ÷ 4 X 5 – 7 + 8 = N
  • 36.
    Group Activity Group 2: Write the correct symbols in the box to make the expression right. 1.60 _____ 42 _____ 14 = 60 _____ 3 = 57 2. 16 _____ 8 ____ 4 = 16 _____ 2 = 8
  • 37.
    Group Activity Group 3: Use the digits 5, 6,7,and 8 to make the expression result to 39. _____ x _____ - _____ + _____ = 39
  • 38.
    1. 4 x3 + 8 2. 84 ÷ 3 x 4 3. 76 – 8 + 5 4. 7 x 9 ÷ 3 – 7 + 8 5. 6 x 4 + 7 – 8 ÷ 2
  • 39.
    CREDITS: This presentationtemplate was created by Slidesgo, including icons by Flaticon, infographics & images by Freepik That’s all for today kids. THANK YOU