Solving Routine or Non routine Problems Involving Addition.pptxg5.pptx

1. Solving Routine or Non routine
Problems Involving Addition and
Subtraction of Decimal Numbers
Including Money
Quarter 2 – Week 3

2. Solving Routine or Non-routine
Problems Involving Addition
and Subtraction of Decimal
Numbers Including Money Using
Appropriate Problem-Solving
Strategies and Tools.

3. There are two types of word problems
you may encounter, it could be:
1. Routine problem- solving which is concerned with
problems that are useful for daily living. Solving a
routine problem requires you to use a clear procedure.
2. Non-routine problem- solving which is mostly concerned
with developing the learner’s mathematical reasoning
power and fostering an understanding that mathematics is
a creative endeavor. Solving a non-routine problem requires
you to use high order thinking skills or HOTS.

4. Direction: Write the following in column form and
add or subtract the following decimal numbers:
0. 59 + 0. 005 + 0. 32 =
0.915

5. Direction: Write the following in column form and
add or subtract the following decimal numbers:
0.03 + 0.864 + 0.27 =
1.164

6. Direction: Write the following in column form and
add or subtract the following decimal numbers:
0.85 + 0. 9 + 2.40 =
4.15

7. Direction: Write the following in column form and
add or subtract the following decimal numbers:
8.73 - 3. 31 =
5.42

8. Direction: Write the following in column form and
add or subtract the following decimal numbers:
24. 078 – 18. 352 =
5.726

9. A pair of shoes costs Php
489.90. Alvin has saved
only Php 345.45. How
much does he still need
to buy the shoes?

10. 1. Understand
➢ Know what is asked in the problem? /What do you like
to find out in the problem?
The amount of money he needs to buy the shoes.
➢ What are the given facts? /What do you know about the
problem? Php 489.90 – cost of shoes, Php 345.45 – money
he saved

11. 2. Plan
➢ What operation to be used? /How do you solve the
problem? Subtraction
➢ What is the number sentence?
Php489.90 – Php 345.45 = N

12. 3. Solve

13. A bakery sells a cake for
Php 350.00. The labor
costs Php 52.50 per
cake. Flour costs Php
71.85. Other costs add
up to Php 92.20. What
is the bakery’s profit on
each cake?

14. Rosalyn jogged
1.35 km on Monday.
Each day after that,
she jogged 0.8 km
more than the day
before. If this pattern continues, what
is the distance Rosalyn would jog on
Sunday?

15. Gina purchased a box of
chocolates for Php 657.50
and gave the cashier Php 1
000. 00. How much change
should she get back?

16. Maria spent Php 184.35 for a box of candies and
Php 12.90 for a box of handkerchief. She gave
her sister Php 125.00. The money she had left
was 127.75. How much money did she have at
first?
+ =

17. 1. Understand:
A. Know what is asked in the problem? /What do you like to
find out int the problem?
B. What are the given facts? /What do you know about the
problem?
2. Plan:
A. What operation to be used? /How do you solve the
problem?
B. What is the number sentence?
3. Solve:
Doing what have you plan
4. Check and Lookback
Finding out if the answer is correct

20. A tailor cut a 3.75 m
piece of cloth from
a roll containing 25
m. How many
meters of cloth
remained in a roll?

21. To prepare for an exam, Gina studied her
lessons for 3 days. She studied 1.5 hours
more on Friday than on Thursday.
On Saturday, she studied 0.75 hour
less than she did on Friday.
If she studied 4 hours on
Saturday, how many hours
in all did she study in
three days?

22. Pacita bought 13.5
kg of beef, 9.25 kg
of fish, and 5.75 kg
of chicken. How
many kilograms of
meat and fish did
she buy in all?

23. Margie sells rice cakes.
She earned Php100 on
Saturday, Php55.65 on
Sunday and
Php28.50 on Monday.
How much did she earn
on these three days?

24. Father bought a 4-kilogram
of roasted chicken which
cost Php480.45. He gave a
P1000.00 bill to the
cashier. How much was his
change?

25. Geri cut 18.3
meters from a 32.5
meters plastic pipe.
How many meters of
the pipe was left?

26. Jessie saved Php72.50
on Wednesday,
Php103.25 on Thursday,
and Php38.75 on
Friday. What was his
total savings during
these three days?

27. 1. Joy buys a pair of shoes for Php875.75 and a pair of
socks for Php79.80. How
much change will she receive if she gives the cashier a
Php1000.00 bill?
2. I am thinking of a number. If the sum of 2.45 and 9.8
is subtracted from it, the
result is 8.21. What number am I thinking of?

28. 3. How much change will mother get from her
Php1000.00 bill if she buys three
books that cost Php395.50, Php245.20 and
Php189.25 respectively?

29. 4. Tonio is saving for a pair of rubber shoes. It costs
Php 1450.00. To date, he has
saved Php 935.65. Ate gave him Php 135.00
additional money. How much more
does he need to save to buy those shoes?
5. Andrew had 18.25 kg of tomatoes to sell in the
market. In the morning, he sold
6.4 kg while he sold 7.35 kg in the afternoon. How
many kilograms of tomatoes
were left unsold that day?