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.
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
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
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
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
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.
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.