Republic of the Philippines
Department of Education
Region VIII
Detailed Lesson Plan in Math 5
I. Objective:
Round Numbers to the Nearest Thousands and Ten Thousand.
Value Focus: Cooperation
II. Subject Matter:
Prerequisite Concepts and Skills

Identifying the place value of a number

Rounding numbers to the nearest Tens and Hundreds
Materials: show-me-boards, picture, number lines
References: K-12 Grade 5 Curriculum M5NS-Ia-15.3, Grade 5 TG and LM
III. Instructional Procedure
Teacher’s Activity
A. Preliminary Activities
Please stand, let us pray.
Pupils Activity
 Interfaith Prayer…
 Present.
Please sit down, Say present, as I call your name.
1. Drill
 Let’s play “Guessing Game”. All of you will solve the
 Yes Ma’am.
given problem as fast as you can. The first pupil
who will raise hand and give the correct answer
wins. Ready?
a. My ones digit is 2. My tens digit is thrice the
 10 882
ones digit. My hundreds digit is four times the
ones digit and my thousands digit is the sum of
the ones and the tens digit. What number am
I?

Great! Let’s give the winner “Aling Dionesia Clap”.
 1, 2, 3, Magaling! Magaling!
Magaling!
b. I am a 5-digit number. My thousands digit is 9.
 39 600
My ten thousands digit is 3. My hundreds digit
is 6. The other digits are zero. Who am I?
 Very Good. Let’s give the winner “Digong Clap”.
 1, 2, 3, Good Job!
2. Review
 This time, we will review on rounding whole
numbers to the nearest tens and hundreds. Write
your answer on your show-me-boards.
a. If we skip counts by 10s
1. 128 is nearer to _______ than ________
 130 than 120
2. 299 is nearer to _______ than ________
3. 278 is nearer to _______ than ________
4. 368 is nearer to _______ than ________
5. 674 is nearer to _______ than ________
 300 than 290
 280 than 270
 370 than 360
 670 than 660
b. If we skip counts by 100s
1. 432 is nearer to _______ than ________
2. 734 is nearer to _______ than ________
3. 245 is nearer to _______ than ________
4. 567 is nearer to _______ than ________
5. 389 is nearer to _______ than ________
 400 than 300
 700 than 600
 200 than 300
 600 than 500
 400 than 300
3. Motivation
 What can you see in the picture?
 Can you tell the exact number of people in the
rally?
 Why do you think it is important to estimate?
 Rally
 Many people
 No
 It is important to estimate because we
cannot tell the exact number.
 Very good! We cannot tell the exact number of
the people in the rally. Sometimes there is no
need for us to give the exact number. Instead
we just approximate/estimate how many people
or things are there.
B. Developmental Activities
1. Presentation
 Let’s read the problem.
 Students will read the problem.
The election count in Calbayog City is
almost over. Mr. Monmon Uy, one of the mayor
candidates, is leading the election. He got a vote of
38 500 and Mayor Diego Rivera, the mayor of
Calbyog City, his opponent, got 23, 210 votes. By
about how many more vote did Mr. Uy have than
Mr. Rivera?
Ask: How will you solve the problem?
 I will solve the problem by rounding
the numbers.
2. Performing the activities
 Let’s find the answer by estimation. Study the
number line. Label from 2 000 to 3 000.
 Let us use the number line. Find 2210.
 To what number is it closer? 2000 or 3000? Since
 2000
it is closer to 2000, round it down.
 Find 2500. Where is it located?
 Nice job. It is halfway between 2000 and 3000.
Round up numbers that have 5 in the hundreds
place. So, 2500 rounded to the nearest thousands
is 3000.
 Find 2678.
 To what number is it closer? 2000 or 3000?
 Since it is closer to 3000, round it up.”
 If the digit before the number that needs to be
round off is 1-4, we have to round it up or round it
down?
 If the digit before the number that needs to be
round off is 5-9, we have to round it up or round it
down?
 Now, by how many votes did Mr. Uy win?
 How will you round off 15 250 to the nearest
thousands?
 How about to the nearest ten thousands?
 Great job. Let’s have a group activity. I will group
you into four (4). Each group will be given an
activity sheet to answer. The first group to finish
with its correct answer wins. Post you answers on
the board then check your answers. But before we
start with our group activity, what are the standard
to follow in doing group activity?
 I will give you 3 minutes. You timer starts now.
Activity: Round as indicated.
Round to the Nearest
MONEY
Thousands
 In the middle of 2000 and 3000
 3000
 Round it down.
 Round it up.
 By 15 250
 15 000
 20 000
 Cooperate with the group.
 Work silently
 Share your idea.
 The students will answer their group
activities.
Ten Thousands
₱ 24, 500
₱ 38, 650
₱ 42, 820
₱ 63, 248
₱ 59, 750
3. Processing the activities
 Let us look at your work.
 What is the rounding place if a number to be
rounded to the nearest thousands? Ten
thousands?
 Amazing!
 What digit should be at the right of the digit in the
rounding place in order to round down?
 What digit should be at the right of the digit in the
rounding place in order to round up?
 Thousands. Ten Thousands.
 Digits 1-4
 Digits 5-9
4. Reinforcing the Concept and Skill
 Let’s answer this:
The diameter of the Earth at the equator is about 12
756 kilometers. About how many thousand
kilometers is the diameter of the Earth at the
equator?
 How can we find the answer to the problem?
 Wow! That’s very cool.
 Let’s study the number line below.
 To which number is 12 765 closer, 12 000 or 13
000?
 Very Nice. Since 12 765 is closer to 13, 000, you
can say that 12 756 becomes 13 000 when
rounded to the nearest thousands. Hence, the
diameter of the Earth is about 13 000 kilometers.
 Now, say “HEPHEP” if the number could be
rounded to 13 000 and “HOORAY” if it couldn’t.
 12 580
 13 295
 12 352
 12 761
 13 940
 Perfect!
5. Abstraction
 Again, how do we round numbers?
To round numbers:
 Look at the place at the left of the number to be
rounded.
 Check the digit to its right. If it is less than 5,
round it down. If it is 5 and above, round it up.
 Change all the digits to the right of the digit to be
rounded to 0.
6. Applications
 Think, Pair, Share. You can have a partner then
discuss it with him/her. After, write your answer in
your show-me-board.
 We can find the answer to the
problem by rounding 12 756 to the
nearest thousands.
 13 000
 HEPHEP
 HEPHEP
 HOORAY
 HEPHEP
 HOORAY
To round numbers:
 Look at the place at the left of the
number to be rounded.
 Check the digit to its right. If it is less
than 5, round it down. If it is 5 and
above, round it up.
 Change all the digits to the right of
the digit to be rounded to 0.
Solve each problem.
1. In a poultry farm of Mang Joshua, there were 2
223 eggs gathered on Monday, 2 134 eggs on
Tuesday, 2 671 on Wednesday, and 3 002 on
Thursday. They were all delivered to different
store in Calbayog City. About how many eggs
were delivered in all?
 10 000 eggs
2. Mang Tony harvested 39 689 kilograms of
mangoes. About how many kilograms of
mangoes were harvested?
 40 000 mangoes
C. Assessment
Round the following to the nearest:
a. Thousands
1. 98 354 __________________
2. 67 452 __________________
3. 8 712 __________________
4. 78 324 __________________
5. 64 657 __________________
b. Ten Thousands
6. 75 345 __________________
7. 62 490 __________________
8. 95 234 __________________
9. 29 567 __________________
10. 83 531 __________________
 98 000
 67 000
 9 000
 78 000
 65 000
 80 000
 60 000
 100 000
 30 000
 80 000
D. Assignment
Using the number line, find out where the number is
nearer to. Underline your answer.
1.
2.
3.
4.
5.
81 234
85 123
83 245
87 345
89 234
80, 000
80, 000
80, 000
80, 000
80, 000
or
or
or
or
or
90 000
90 000
90 000
90 000
90 000
 80 000
 90 000
 80 000
 90 000
 90 000
Enrichment
Write the place value to which each number is
rounded.
1.
2.
3.
4.
5.
120 000 ___________________
30 000 ___________________
55 000 ___________________
7 000 ___________________
198 000 ___________________
 Ten Thousands
 Ten thousands
 Thousands
 Thousands
 Thousands