This document provides information about comparing and ordering whole numbers. It discusses comparing numbers using comparison symbols and comparing digits from left to right. When ordering numbers, it can be in ascending or descending order from lowest to highest or highest to lowest. Examples are provided to demonstrate comparing and ordering whole numbers. Tips are given such as greater numbers of digits indicate a greater value.

1. Comparing and
Ordering Whole
Numbers

2. “Quote-plete Me!”

3. COMPARING WHOLE NUMBERS
Comparison Symbols

4. COMPARING WHOLE NUMBERS
Tips:
1) The GREATER the number of DIGITS, the
GREATER the NUMBER.
Ex. 5,284 324

5. COMPARING WHOLE NUMBERS
Tips:
2) If the given numbers have the same
number of digits, compare each digit from
LEFT to RIGHT.
Ex. 32,452,192 32,458,192

6. COMPARING WHOLE NUMBERS
Tips:
3) Familiarize yourselves with various forms
of writing numbers.
Ex.
Two hundred fifty-two 200+50+2

7. COMPARING WHOLE NUMBERS
More examples:
45,092 445,002

8. COMPARING WHOLE NUMBERS
More examples:
3,895,124 3,895,134

9. COMPARING WHOLE NUMBERS
More examples:
234 million, 287 thousand, 500
234, 287,005

10. COMPARING WHOLE NUMBERS
More examples:
Four thousand, twenty-three
4,000+20+3

11. COMPARING WHOLE NUMBERS
More examples:
293,002,123
293 million, 2 thousand, 123

12. “Quote-plete Me!”

13. COMPARING WHOLE NUMBERS
ONLINE HOMEWORK

14. “Professor Oak’s Dilemma”
Good day, Grade 4! I’m Professor Oak from
Pallet town. I’m a Pokémon professor and
researcher. I encountered countless
number of Pokémon already. However, I’m
afraid that I can remember them all with
my age. So, I recorded their data in a
device called Pokédex…

15. “Professor Oak’s Dilemma”
However, I think there’s quite a
problem… I accidentally mixed-up
some of Pokémon data. Some ORDER
got mixed-up. Maybe you can help me
fixing it by ORDERING the Pokémon in
ASCENDING ORDER, by their
number…

16. “Professor Oak’s Dilemma”
By the way, do you know how to
ORDER NUMBERS?
Worry no more! I’ll explain that to
you. So better pay attention, ok?!

17. ORDERING WHOLE NUMBERS
2 Orders:
1) Ascending or Increasing Order
2) Descending or Decreasing Order

18. ORDERING WHOLE NUMBERS
ASCENDING or INCREASING ORDER
- The numbers are arranged from LOWEST to
HIGHEST

19. ORDERING WHOLE NUMBERS
Example: The monthly budget (in pesos) of Dela Cruz
Family in 4 months are: 34,283 pesos, 29,304 pesos,
32,829 pesos, and 30,273 pesos.
Arrange their monthly budget in ASCENDING ORDER

20. ORDERING WHOLE NUMBERS
DESCENDING or DECREASING ORDER
- The numbers are arranged from HIGHEST to
LOWEST

21. ORDERING WHOLE NUMBERS
Example: [insert student’s name]’s weekly baon for 4
weeks are 827, 847, 839, and 902 pesos.
Arrange his/her weekly baon in DESCENDING ORDER

22. “Professor Oak’s Dilemma”
Are we clear about ORDERING
WHOLE NUMBERS?
Can you now lend me a hand in fixing
my Pokédex?

23. Ok, we need to arrange them in
ASCENDING ORDER

24. Ok, we need to arrange them in
DESCENDING ORDER

25. “Professor Oak’s Dilemma”
Thank you so much for helping
me fix my Pokédex! See you
soon! ☺

26. “Professor Oak’s Dilemma”
Don’t forget to ANSWER
Primary Mathematics 4 pages
14 – 16.
That’s your SEATWORK for
today.

27. “Half Full? Or Half Empty?”
Look at the water bottle in front with
some water in it. Tell whether the water
bottle is half full or half empty. Share
your thoughts on class.

28. ROUNDING-OFF WHOLE NUMBERS
- Means we give an estimated value of the
number
- Also called ESTIMATION or APPROXIMATION

29. ROUNDING-OFF WHOLE NUMBERS
“Rounding Poem”
Find your number
Look right next door
The crystal ball will tell you more

30. ROUNDING-OFF WHOLE NUMBERS
5 or more,
Let it score!
4 or less,
Let it rest
The crystal ball is the hero
It turns all the rest to zeroes

31. ROUNDING-OFF WHOLE NUMBERS

32. ROUNDING-OFF WHOLE NUMBERS
Examples: Round-off the following:
1) 3,683 (to the nearest THOUSANDS)
2) 499,093 (to the nearest TEN THOUSANDS)
3) 32,723,002 (to the nearest TEN MILLIONS)

33. ROUNDING-OFF WHOLE NUMBERS
Examples:
4) The average calorie intake per day for men is 2,640,
while for women is 1,785. Round-off those calories in
the nearest HUNDREDS.

34. ROUNDING-OFF WHOLE NUMBERS
Examples:
5) According to Guiness World Records, the most
tweeted hashtag in 24 hours is
#AlDubEBTamangPanahon with 40,706,392 tweets.
Round-off the number in the nearest MILLIONS.

35. ROUNDING-OFF WHOLE NUMBERS
Challenge Problems:
1) *Open your books on PAGE 20*

36. ROUNDING-OFF WHOLE NUMBERS
Challenge Problems:
2) What is the LEAST possible number, when rounded-
off to the nearest HUNDRED THOUSANDS, the number
is 800,000?
How about the GREATEST?

37. ROUNDING-OFF WHOLE NUMBERS
Challenge Problems:
3) Arrange the digits 1,2,3,4,5 (w/ no repetitions) to
form the GREATEST possible number that when
rounded-off to the nearest THOUSANDS the number is
31,000.

38. ROUNDING-OFF WHOLE NUMBERS
Pair Seatwork
Primary Mathematics 4 pages 21 – 23

39. ROUNDING-OFF WHOLE NUMBERS
Homework
Primary Mathematics 4
page 24 (Mind Workout)