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Lesson 3
Rounding Off Numbers to the
Nearest Tens,
Hundreds and Thousands
Give the place value of the underlined
number.
1. 368
2. 1 482
3. 745
4. 1 425
5. 936
A. If we skip count by 10s,
1. 28 is nearer to ______.
2. 42 is nearer to ______.
3. 61 is nearer to ______.
4. 73 is nearer to ______.
5. 89 is nearer to ______.
B. If we skip count by 100s.
1. 121 is nearer to _______ than______.
2. 389 is nearer to _______ than______.
3. 512 is nearer to _______ than______.
4. 678 is nearer to _______ than______.
5. 803 is nearer to _______ than______.
Can you tell the exact number of people
watching the game? About
how many people are watching the
show?
Basahin ang sitwasyon at sagutin nang wasto ang
mga tanong.
A. Si John ay nagbakasyon ng 29 na araw sa
Maynila. I-round off ito sa pinakamalapit na
sampuan (tens), halos ilang araw siya sa Maynila?
Pag-aralan ang number line upang lubos na
maunawaan.
Sometimes there is no need for us to
give the exact number.
Instead we just approximate/estimate
how many people or things there are.
1) Aling tens ang mas malapit sa 29? 20? o 30?
Kapag ini-round off ang 29 sa pinakamalapit na
sampuan (tens) ito ay magiging ____________.
1. Saang sandaanan (hundreds) mas malapit
ang 260? sa 200 o 300?
2. Kapag ini-round off ang 260, ito ay magiging
___.
3. Ano ang gagawin kapag ang digit na ini-
round off ay mas mababa sa 4? 5 o mas
mataas sa 5?_____
C. Pag-aralan ang number line na may label
na 4 000,
4 100,…, 5 000.
1) Saang libuhan (thousands) mas malapit ang
4 300? 4 000 o 5 000?
2) Kapag ini-round off ang 4 300 saan mas malapit
na libuhan (thousands) ito?
A. I-round off ang sumusunod na bilang sa
pinakamalapit na sampuan (tens):
1) 56 ______2) 84 ______3) 38 ______
4) 69 ______5) 91 ______
B. I-round off ang sumusunod na bilang sa
pinakamalapit na sandaanan (hundreds):
1) 149______ 2) 269 ______ 3) 576 ______
4) 304 ______ 5) 438 ______
C. I-round off ang sumusunod na bilang sa
pinakamalapit na libuhan (thousands):
1) 2 345 _______3) 3 894 _______
2) 1 789 _______4) 5 452 _______
Ask: How do we round off numbers?
To round off numbers …
1. Look for the place of the digit to be rounded
off.
2. Check the digit to its right. If it is 4 or below,
round it down.
3. If it is 5 or above, round it up.
4. Change all the digits to the right of the digit
to be rounded off to 0.
A.I-round off ang bawat bilang ayon sa
place value na
nasa loob ng panaklong.
1)69 sampuan (tens)
2)486 sandaanan (hundreds)
3)392 sandaanan (hundreds)
4)5 736 libuhan (thousands)
5)236 sampuan (tens)
Applying to New and Other Situations
EVALUATION
Basahin at sagutin nang wasto ang mga
tanong.
1)Lumahok ang 3 246 na manlalaro sa
ginananap na Panlarong Panrehiyon. I-round
off ang bilang na
ito sa pinakamalapit na libuhan (thousands).
2)Kayang buhatin ng isang lalaki ang halos 50
kg na bigas. Alin sa mga ito ang kaya niyang
buhatin:
55 kg, 54 kg, 47 kg, 58 kg, 56 kg?
3) Ang isang panaderya ay nangangailangan ng
halos tatlong daan, dalawampu’t siyam na itlog
para sa paggawa ng egg pie. Halos ilang itlog ang
dapat nilang bilhin?
4) Kung ang dalawang batang boyscout ay gagamit
ng 257 dm ng pisi, alin sa sumusunod na haba ng
pisi ang dapat bilihin? 250 dm, 260 dm, 300 dm?
Bakit?
5) Kung ang nanay ay may PHP300, sapat ba ito para
mabili niya ang sumusunod: 1 kilo ng isda,
1 kilo ng manok, at 5 kilo ng bigas? Bakit?
1) Anong bilang ang maaaring i-round off pababa sa 50?
2) Aling bilang na nasa larawan ang maaaring i-round
off pataas sa 60?
3) Anong bilang ang maaaring i-round off pababa sa 80?
4) Anong bilang na 4 na digit ang maaaring i-round off
sa 2 000?
5) Anong bilang ang maaaring i-round off pataas sa 700?
6) Anong bilang na 3 digit ang maaaring i-round off sa
500?

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Rounding Off Numbers to the Nearest Tens, Hundreds and Thousands.pptx

  • 1. Lesson 3 Rounding Off Numbers to the Nearest Tens, Hundreds and Thousands
  • 2. Give the place value of the underlined number. 1. 368 2. 1 482 3. 745 4. 1 425 5. 936
  • 3. A. If we skip count by 10s, 1. 28 is nearer to ______. 2. 42 is nearer to ______. 3. 61 is nearer to ______. 4. 73 is nearer to ______. 5. 89 is nearer to ______. B. If we skip count by 100s. 1. 121 is nearer to _______ than______. 2. 389 is nearer to _______ than______. 3. 512 is nearer to _______ than______. 4. 678 is nearer to _______ than______. 5. 803 is nearer to _______ than______.
  • 4. Can you tell the exact number of people watching the game? About how many people are watching the show?
  • 5. Basahin ang sitwasyon at sagutin nang wasto ang mga tanong. A. Si John ay nagbakasyon ng 29 na araw sa Maynila. I-round off ito sa pinakamalapit na sampuan (tens), halos ilang araw siya sa Maynila? Pag-aralan ang number line upang lubos na maunawaan.
  • 6. Sometimes there is no need for us to give the exact number. Instead we just approximate/estimate how many people or things there are.
  • 7. 1) Aling tens ang mas malapit sa 29? 20? o 30? Kapag ini-round off ang 29 sa pinakamalapit na sampuan (tens) ito ay magiging ____________.
  • 8. 1. Saang sandaanan (hundreds) mas malapit ang 260? sa 200 o 300? 2. Kapag ini-round off ang 260, ito ay magiging ___. 3. Ano ang gagawin kapag ang digit na ini- round off ay mas mababa sa 4? 5 o mas mataas sa 5?_____
  • 9. C. Pag-aralan ang number line na may label na 4 000, 4 100,…, 5 000. 1) Saang libuhan (thousands) mas malapit ang 4 300? 4 000 o 5 000? 2) Kapag ini-round off ang 4 300 saan mas malapit na libuhan (thousands) ito?
  • 10.
  • 11. A. I-round off ang sumusunod na bilang sa pinakamalapit na sampuan (tens): 1) 56 ______2) 84 ______3) 38 ______ 4) 69 ______5) 91 ______ B. I-round off ang sumusunod na bilang sa pinakamalapit na sandaanan (hundreds): 1) 149______ 2) 269 ______ 3) 576 ______ 4) 304 ______ 5) 438 ______ C. I-round off ang sumusunod na bilang sa pinakamalapit na libuhan (thousands): 1) 2 345 _______3) 3 894 _______ 2) 1 789 _______4) 5 452 _______
  • 12. Ask: How do we round off numbers? To round off numbers … 1. Look for the place of the digit to be rounded off. 2. Check the digit to its right. If it is 4 or below, round it down. 3. If it is 5 or above, round it up. 4. Change all the digits to the right of the digit to be rounded off to 0.
  • 13. A.I-round off ang bawat bilang ayon sa place value na nasa loob ng panaklong. 1)69 sampuan (tens) 2)486 sandaanan (hundreds) 3)392 sandaanan (hundreds) 4)5 736 libuhan (thousands) 5)236 sampuan (tens) Applying to New and Other Situations
  • 14. EVALUATION Basahin at sagutin nang wasto ang mga tanong. 1)Lumahok ang 3 246 na manlalaro sa ginananap na Panlarong Panrehiyon. I-round off ang bilang na ito sa pinakamalapit na libuhan (thousands). 2)Kayang buhatin ng isang lalaki ang halos 50 kg na bigas. Alin sa mga ito ang kaya niyang buhatin: 55 kg, 54 kg, 47 kg, 58 kg, 56 kg?
  • 15. 3) Ang isang panaderya ay nangangailangan ng halos tatlong daan, dalawampu’t siyam na itlog para sa paggawa ng egg pie. Halos ilang itlog ang dapat nilang bilhin? 4) Kung ang dalawang batang boyscout ay gagamit ng 257 dm ng pisi, alin sa sumusunod na haba ng pisi ang dapat bilihin? 250 dm, 260 dm, 300 dm? Bakit? 5) Kung ang nanay ay may PHP300, sapat ba ito para mabili niya ang sumusunod: 1 kilo ng isda, 1 kilo ng manok, at 5 kilo ng bigas? Bakit?
  • 16. 1) Anong bilang ang maaaring i-round off pababa sa 50? 2) Aling bilang na nasa larawan ang maaaring i-round off pataas sa 60? 3) Anong bilang ang maaaring i-round off pababa sa 80? 4) Anong bilang na 4 na digit ang maaaring i-round off sa 2 000? 5) Anong bilang ang maaaring i-round off pataas sa 700? 6) Anong bilang na 3 digit ang maaaring i-round off sa 500?