Demonstration Teaching

1. DEMONSTRATION
TEACHING
EMELITA A. FERNANDO
MATHEMATICS 5
QUARTER 2

2. Solving Routine and Non-routine
Problems Involving Multiplication
Without or With Addition or
Subtraction of Decimals and
Whole Numbers Including Money
Using Appropriate Problem
Solving Strategies and Tools

3. Identifying 2 numbers that satisfy the
following:
a) sum of 12 and product of 32
b) product of 72 and sum of 17
c) difference of 2 and sum of 16
d) product of 45 and sum of 14
e) sum of 17 and difference of 1
(8,4)
(9,8)
(9,7)
(9+8)
(9,5)

4. In a class of 25 boys and
35 girls, 16 joined the
choir.
How many are not
members of the choir?

5. 1. A housefly’s
weight is 0.13
grams. How many
grams do 500
houseflies weigh
?
* What is asked in
the problem?

6. 2. A grasshopper can
carry 1.6 grams of load .
How much load can 300
grasshoppers carry ?
* What are needed to
solve the problem?

7. Why it is important
of knowing the
hidden question in
a problem?

9. What is the boy in the picture
doing?
Why is he selling newspaper?
What trait does he show?
Do we need to be industrious?
Why?
picture of a boy selling newspaper

10. Alvin sells newspapers at ₱9.50 per
copy. How much does he pay for 30
copies?
1. Who is selling newspaper?
2. How much per copy of newspaper?
3. How many newspaper did he sell?
4. What did the problem asked you to
solve ?
5. What given facts are needed in
answering the problem?
6. What operation is needed to get the
correct answer?

11. Read and analyze each word
problem.
A man can run at an average
speed of 37.616 km per hour. How far
can a man run in 3 hours?
1. The word problem asked for
_______________.
2)The problem needs
________________.
3)The operation to be used is
_______________.

12. Answer what is asked in each
problem.
1. A certain book in
Mathematics is 3.15 cm thick.
How tall will 12 books stand ?
2. Joseph can run 5.132 km
per hour. How many meters
can he run in two hours ?

13. Analyze the problem below .
If a meter of cloth costs
₱72.95, how much would 6.5
meters cost?
1. . What is being asked in the
problem?
2. Give the facts needed to solve
the problem.
3. What operation to be used?
4. What is the number sentence?
5. What is the final answer?

14. Why is
analyzing the
word problem
important in
solving it? What
are the steps in
analyzing a word
problem?

15. Read and tell what is being asked in
this problem.
1. What is asked in the problem?
2. What facts are needed?
3. What operation to be used?
4. What is the equation to solve
the problem
5. What is the answer?
Group 1
Mrs. Ocampo makes blouses and
skirts. She has 1.25 m for the
blouse and 1.35 m for the skirt.
How much will 12 blouses and skirts
cost if a metre of the material used
costs
45.25?

16. Read and analyze
A contractor finished 0.25 of a highway
in 5 days. If the highway is 60.8 kilometers
long. What part of the highway was finished
?
1. Write what is asked.
2. What are given?
3. What is the operation to be used?
4. What operations to be used in solving
this problem?
5. What is the equation to solve the
problem?
Group 2

17. 1. Rice sells at ₱21.50 per
kilogram. How much will I
pay for 5.5 kg?
Write the number sentence
then solve.
Equation:
_________________
Answer:_________________
__
Group 3

18. 1. How many square meters of
wood is needed to cover a ceiling
which is 25.52 m long and 18.36 m
wide ?
Equation:
_____________________
Answer:__________________
______
Group 4
Write an equation for these
problem then solve .

19. How do you get the correct answer?
Did you analyze the problem?
What is asked in the problem?
What are the given facts needed to solve
the word problem?
What operation is needed to solve the
problem?
Write the correct equation to get the
correct answer.
Write your answer with label.
What trait did she show?
GENERALIZATION

20. Read, analyze, and solve for
the answer.
1.Mrs. Moran bought a whole
dressed chicken weighing 2. 5
kilograms. If a kilogram of
chicken costs 140.50, how much
did she pay for the chicken?

21. 1. A can of corned beef costs
₱85.15. How much will six cans
cost?
Equation:
______________________
Answer:___________________
______
Write an equation for these
problems then solve .

22. 2. Mang Fabian
bought 40 kg of
tilapia fingerlings at
₱180.50 a kilo. How
much did he pay for
all the fingerlings?

23. Give the equation then solve.
1. A dress maker uses 3.25 m of
cloth to sew a dress. How many
meters of cloth will she need for 12
dresses?
2. Princess wrapped 215 boxes of
gifts and used 0.12 m of ribbon for
each box. How many meters of
ribbon did she use for all the gifts?
ASSIGNMENT

24. THANK YOU AND
GOOD LUCK !!!