SlideShare a Scribd company logo
1 of 5
Lesson 9<br />PROBLEM SOLVING INVOLVING SUBTRACTION<br />Objectives<br />After this lesson, the students are expected to:<br />,[object Object]
discuss the different steps in problem solving;
develop the knowledge in problem solving.4126089481542<br />4126089481542<br />To master the application of subtraction in problem solving, here are some examples:<br />Pedro had marbles. He gave away two of his marbles to Juan. If Pedro had twelve marbles, how many marbles left to Pedro after he gave two to Juan?<br />We can use the problem solving plan:<br />1.Know what the problem is.<br />a.What is asked?   How many marbles left to Pedro?<br />b.What are given?  12 marbles of Pedro and 2 to Juan<br />c.What operation to be used?  Subtraction<br />12 – 2 = n12 – 2 = 10   <br />N = 10 marbles left to Pedro.<br />Checking:<br />2 + 10 = n  2 + 10 = 12<br />Another example:<br />Mt. Everest, is 29 028 ft. high, while the Mt. McKinley is 20 320 ft. high. How much is Mt. Everest higher than Mt. McKinley? <br />1.What is asked?  <br />How much Mt. Everest higher than Mt. McKinley?<br />2.What are given?<br />Mt. Everest, is 29 028 ft. high and Mt. McKinley is 20 320 ft. high.<br />3.What operation to be used?<br />Subtraction<br />29 028 – 20 320 = n<br />29 028 – 20 320 = 8 708 ft. <br />Checking:<br />8 708 + 20 320 = n<br />8 708 + 20 320 = 29 028 <br />-344557-140805WORKSHEET NO. 9<br />NAME: ___________________________________DATE: _____________ <br />YEAR & SECTION: ________________________RATING: ___________<br />A. Get one whole sheet of paper and solve the following problem. <br />      <br />,[object Object],-4094922262890___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________.<br />,[object Object],___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________.<br />,[object Object],___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________.<br />,[object Object],___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________.<br />,[object Object],-404241017145___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________.<br />,[object Object],_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________. <br />,[object Object],-372958-492810___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________.<br />,[object Object],___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________.<br />,[object Object],-4138295229235__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________.<br />,[object Object],___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________.<br />
018 lesson 9
018 lesson 9

More Related Content

More from edwin caniete (20)

034 lesson 22
034 lesson 22034 lesson 22
034 lesson 22
 
033 lesson 21
033 lesson 21033 lesson 21
033 lesson 21
 
032 lesson 20
032 lesson 20032 lesson 20
032 lesson 20
 
031 chapter v
031 chapter v031 chapter v
031 chapter v
 
030 unit ii
030 unit ii030 unit ii
030 unit ii
 
029 lesson 19
029 lesson 19029 lesson 19
029 lesson 19
 
028 lesson 18
028 lesson 18028 lesson 18
028 lesson 18
 
027 lesson 17
027 lesson 17027 lesson 17
027 lesson 17
 
026 lesson 16
026 lesson 16026 lesson 16
026 lesson 16
 
025 chapter iv
025 chapter iv025 chapter iv
025 chapter iv
 
024 lesson 15
024 lesson 15024 lesson 15
024 lesson 15
 
022 lesson 13
022 lesson 13022 lesson 13
022 lesson 13
 
023 lesson 14
023 lesson 14023 lesson 14
023 lesson 14
 
021 lesson 12
021 lesson 12021 lesson 12
021 lesson 12
 
021 lesson 11
021 lesson 11021 lesson 11
021 lesson 11
 
020 lesson 10
020 lesson 10020 lesson 10
020 lesson 10
 
019 chapter iii
019 chapter iii019 chapter iii
019 chapter iii
 
016 lesson 7
016 lesson 7016 lesson 7
016 lesson 7
 
015 chapter ii
015 chapter ii015 chapter ii
015 chapter ii
 
014 lesson 6
014 lesson 6014 lesson 6
014 lesson 6
 

Recently uploaded

PEACE BETWEEN ISRAEL AND PALESTINE REQUIRES EXTREMISTS OUT OF POWER AND RESTR...
PEACE BETWEEN ISRAEL AND PALESTINE REQUIRES EXTREMISTS OUT OF POWER AND RESTR...PEACE BETWEEN ISRAEL AND PALESTINE REQUIRES EXTREMISTS OUT OF POWER AND RESTR...
PEACE BETWEEN ISRAEL AND PALESTINE REQUIRES EXTREMISTS OUT OF POWER AND RESTR...
Faga1939
 
World Politics as Black & White Iran and Israel or how people fall victims of...
World Politics as Black & White Iran and Israel or how people fall victims of...World Politics as Black & White Iran and Israel or how people fall victims of...
World Politics as Black & White Iran and Israel or how people fall victims of...
Muhammad Shamsaddin Megalommatis
 
R$ 78 milhões: Estado aprova 593 propostas para acordos diretos de precatórios
R$ 78 milhões: Estado aprova 593 propostas para acordos diretos de precatóriosR$ 78 milhões: Estado aprova 593 propostas para acordos diretos de precatórios
R$ 78 milhões: Estado aprova 593 propostas para acordos diretos de precatórios
Maurílio Júnior
 
CaseThe legal victory in the turmeric patent case safeguarded traditional kno...
CaseThe legal victory in the turmeric patent case safeguarded traditional kno...CaseThe legal victory in the turmeric patent case safeguarded traditional kno...
CaseThe legal victory in the turmeric patent case safeguarded traditional kno...
alpha012343210
 

Recently uploaded (17)

PEACE BETWEEN ISRAEL AND PALESTINE REQUIRES EXTREMISTS OUT OF POWER AND RESTR...
PEACE BETWEEN ISRAEL AND PALESTINE REQUIRES EXTREMISTS OUT OF POWER AND RESTR...PEACE BETWEEN ISRAEL AND PALESTINE REQUIRES EXTREMISTS OUT OF POWER AND RESTR...
PEACE BETWEEN ISRAEL AND PALESTINE REQUIRES EXTREMISTS OUT OF POWER AND RESTR...
 
Encore portal Project PPt on live portal
Encore portal Project PPt on live portalEncore portal Project PPt on live portal
Encore portal Project PPt on live portal
 
Dominican American Coalition PAC Executive Summary
Dominican American Coalition PAC Executive SummaryDominican American Coalition PAC Executive Summary
Dominican American Coalition PAC Executive Summary
 
Embed-4-1-1.pdf vm ;sdkp[kdp[kpdkpodp;p;j
Embed-4-1-1.pdf vm ;sdkp[kdp[kpdkpodp;p;jEmbed-4-1-1.pdf vm ;sdkp[kdp[kpdkpodp;p;j
Embed-4-1-1.pdf vm ;sdkp[kdp[kpdkpodp;p;j
 
Minnesota Timberwolves Bring Ya Ass T Shirt
Minnesota Timberwolves Bring Ya Ass T ShirtMinnesota Timberwolves Bring Ya Ass T Shirt
Minnesota Timberwolves Bring Ya Ass T Shirt
 
19052024_First India Newspaper Jaipur.pdf
19052024_First India Newspaper Jaipur.pdf19052024_First India Newspaper Jaipur.pdf
19052024_First India Newspaper Jaipur.pdf
 
Have A Complimentary Cheat Sheet, On Us!!!
Have A Complimentary Cheat Sheet, On Us!!!Have A Complimentary Cheat Sheet, On Us!!!
Have A Complimentary Cheat Sheet, On Us!!!
 
israeil_bnetaniahou_panel_report_eng.pdf
israeil_bnetaniahou_panel_report_eng.pdfisraeil_bnetaniahou_panel_report_eng.pdf
israeil_bnetaniahou_panel_report_eng.pdf
 
World Politics as Black & White Iran and Israel or how people fall victims of...
World Politics as Black & White Iran and Israel or how people fall victims of...World Politics as Black & White Iran and Israel or how people fall victims of...
World Politics as Black & White Iran and Israel or how people fall victims of...
 
Embed-4-3 (1).pdf cvxx'f['df[p'lf][l][fl][fl][][l[
Embed-4-3 (1).pdf cvxx'f['df[p'lf][l][fl][fl][][l[Embed-4-3 (1).pdf cvxx'f['df[p'lf][l][fl][fl][][l[
Embed-4-3 (1).pdf cvxx'f['df[p'lf][l][fl][fl][][l[
 
May 2024 - Crypto Market Report_FINAL.pdf
May 2024 - Crypto Market Report_FINAL.pdfMay 2024 - Crypto Market Report_FINAL.pdf
May 2024 - Crypto Market Report_FINAL.pdf
 
21052024_First India Newspaper Jaipur.pdf
21052024_First India Newspaper Jaipur.pdf21052024_First India Newspaper Jaipur.pdf
21052024_First India Newspaper Jaipur.pdf
 
Meta_AI_ads_investigation.pdfldoljjwejolejolol
Meta_AI_ads_investigation.pdfldoljjwejolejololMeta_AI_ads_investigation.pdfldoljjwejolejolol
Meta_AI_ads_investigation.pdfldoljjwejolejolol
 
Embed-3-1-1.pdf The ECI direction on April 2, 2024 can be read here:
Embed-3-1-1.pdf  The ECI direction on April 2, 2024 can be read here:Embed-3-1-1.pdf  The ECI direction on April 2, 2024 can be read here:
Embed-3-1-1.pdf The ECI direction on April 2, 2024 can be read here:
 
R$ 78 milhões: Estado aprova 593 propostas para acordos diretos de precatórios
R$ 78 milhões: Estado aprova 593 propostas para acordos diretos de precatóriosR$ 78 milhões: Estado aprova 593 propostas para acordos diretos de precatórios
R$ 78 milhões: Estado aprova 593 propostas para acordos diretos de precatórios
 
CaseThe legal victory in the turmeric patent case safeguarded traditional kno...
CaseThe legal victory in the turmeric patent case safeguarded traditional kno...CaseThe legal victory in the turmeric patent case safeguarded traditional kno...
CaseThe legal victory in the turmeric patent case safeguarded traditional kno...
 
Positive Effects Of Social Media On Mental Health
Positive Effects Of Social Media On Mental HealthPositive Effects Of Social Media On Mental Health
Positive Effects Of Social Media On Mental Health
 

018 lesson 9