grade 4

1. UNIT 1
Building Number
Sense: Whole
Numbers
Websites/references
file:///C:/Users/User/Desktop/math%20lesson/M4%2
001%20Q1%20FD.pdf
Math for life long learning. Abiva 2017
Prepared by :
Sir Renz

2. Objectives:
At the end of this unit, you should be able
to;
a. give the place value and value of a digit in
numbers up to 100 000;
b. read and write numbers up to a hundred thousand
in symbols and in words;
c. round off numbers to the nearest thousand and
ten thousand; compare numbers up to 100 000 using
relation symbols; and
d. order numbers up to 100 000 in increasing or
decreasing order.

3. •Lesson 2:
•Reading and Writing Numbers up to
100 000

5. Kahoot Game

6. Learn about It!

7. Patrick purchased a house and needs
to issue a check worth ₱154,678 as
down payment. How will he write the
amount in words?

8. How do we write numbers in
words?
Definition 2.1: Periods are the
sets of three digits into which
numerals are grouped.

9. The first period is called the ones period. It
is formed with the first three digits of the
number. The second period, called the
thousands period is formed with the next
three digits of the number.

10. Reading and Writing Numbers in
Words

12. The table below shows the correct
spelling of numbers in words. These
are the number words you need to
be familiar with. Other number
words are just a combination of
these words.

14. Writing Numbers in Standard and
Expanded Forms
So far, you have learned how to read and write
numbers in words.
154 678 is in standard form, while one hundred
fifty-four thousand, six hundred seventy-eight is
in word form.

16. Let’s Practice!
Example 1: Write 146 947 in expanded form.
Solution: To write a number in expanded
form, we simply find the sum of all the
values of its digits.

19. Answer:
50,000 – ten thousand
Try It Yourself!
Write 542 343 in expanded form.

20. Example 2

21. Example 3:
Write down the largest possible
number that can be formed using the
digits 1, 2, 4, 5, 7, and 9 together with
the place value and value of each digit.

22. Solution:
Step 1: Arrange the numbers from
highest to lowest: 9, 7, 5, 4, 2, and
1.
Step 2: Write each digit in the
table below following its order
from highest to lowest.

24. Real-world problem

28. Check Your Understanding!
1.Identify the place value and value of
the digit 9 in each of the following
numerals.
a. 204 869 b. 947 245 c. 395 205

29. 2. Use the table provided on the next page
to identify the municipality in the province
of Rizal with the given population.
a. Its population has a 6 in the ten
thousands place.
b. b. Its population has the digit 3 with a
value of 30 000.
c. c. Its population has the digit 4 in the ones
place, and a digit 2 in the thousands place.

30. Top 5 Municipalities Population1 in 2015
(Source: Philippine Statistics Authority)
Municipality Population
Rodriguez (Montalban) 369,222
Cainta 332,128
Taytay 319,104
Binangonan 282,474
Santa Maria 256,454

31. 3. Jason wrote down a three-digit number and
dared the class to guess what it was. See if
you can guess the number. He gave them a few
clues as follows:
a.The digit in the hundreds place is 8 greater
than the digit in the ones place.
b.b. The sum of all the digits in the three
place values is 15.
c. c. The digit in the ones place is 1.

32. Understanding How I learned
Read and answer each question. 5 sentences
each question.
1. Was the lesson difficult to understand? In
what way?
2. How did you manage when you encountered
difficult topic/s?
3. Have you ever encounter a situation similar
to the one discussed in this lesson?

33. Assignment
Dave typed a five-digit number on his tablet. He
gave his friends four clues to determine the
number. What number is it based on these clues?
a. The highest place value, the hundreds place
value, and the ones place value all have the same
digit. b. The tens place value is one less than
thousands place value. c. The hundreds place value
is 9 greater than the tens place. d. The ones
place value is 9.