SlideShare a Scribd company logo
Adjex Academy 1
ARITHMETIC TWO
by Adjex Academy
Written by Cynthia Ufuoma
Adjekukor
CONTENTS
oIntroduction
oPrime Factorization
oHighest Common Factor
oLowest Common Multiple
oRounding Integers
oContact Details
Adjex Academy 2
INTRODUCTION
 Any pair of natural number are called factors of their
product.
 E.g. what are factors of 18?
1 × 18 = 18
2 × 9 = 18
3 × 6 = 18
 Therefore, the factors of 18 are: 1, 2, 3. 6, 9 and 18.
Adjex Academy 3
Introduction
 A prime number is any natural number that is only
divisible by itself and one (1).
E.g. 2 ÷ 2 = 1 and 2 ÷ 1 = 2
 A Prime number only has two factors; itself and one
7 ÷ 7 = 1 and 7 ÷ 1 = 7.
9 is not a Prime number.
9 ÷ 3 = 3.
 Note that 1 is not a prime number because it is only
divisible by itself (1). Thus, it has only one factor.
Adjex Academy 4
PRIME FACTORIZATION
This is obtained by dividing a number by successively
increasing prime numbers.
E.g. 2, 3, 5, 7 …
 Find the prime factors of 24
Therefore, the prime factors of 24 are 2 × 2 × 2 × 3
Adjex Academy 5
HCF & LCM
HIGHEST COMMON FACTOR (HCF)
The HCF of two natural numbers is the largest factor
that they have in common.
LOWEST COMMON MULTIPLE (LCM)
 The LCM is the Lowest natural number two natural
numbers will divide into whole numbers of times.
Find the HCF and LCM of 24 and 32
Adjex Academy 6
HCF & LCM
First look for the prime factors
 24 = 2 × 2 × 2 × 3
 32 = 2 × 2 × 2 × 2 × 2
 HCF = 2 × 2 × 2 = 8
Adjex Academy 7
HCF & LCM
 LCM = 2 × 2 × 2 × 2 × 2 × 3 = 96
Adjex Academy 8
ROUNDING INTEGERS
 Integers are rounded to their nearest multiples of 10.
If the number is less than half way to the nearest multiples of
10, it is rounded down to the previous multiples of 10.
 But if the number is more than half way to the nearest
multiples of 10, it is rounded up to the nearest multiples of 10.
 And if the number is half way, it is either rounded down or up
to the nearest multiples of 10.
Adjex Academy 9
Rounding Integers
 Round the following to the multiples of 10.
34 ≅ 30
36 ≅ 40
35 ≅ 30 / 40
Adjex Academy 10
CONTACT DETAILS
Follow this YouTube link to watch the video on
Arithmetic 2
https://youtu.be/woSnNTlHBxc
Facebook: Adjex Academy
LinkedIn: Adjex Academy
Slideshare: Adjex Academy
Instagram: adjex_academy
E-mail: adjexacademy@gmail.com
Adjex Academy 11
THANK
YOU
FOR
LISTENING
Adjex Academy 12

More Related Content

What's hot

Factors and greatest common factor
Factors and greatest common factorFactors and greatest common factor
Factors and greatest common factor
deped
 
Factors, multiples and primes
Factors, multiples and primesFactors, multiples and primes
Factors, multiples and primes
suntert
 
Common Factors And Greatest Common Factor
Common Factors And Greatest Common FactorCommon Factors And Greatest Common Factor
Common Factors And Greatest Common Factor
Brooke Young
 
Factors and multiples
Factors and multiplesFactors and multiples
Factors and multiples
Adam Mlynarczyk
 
Quantitative aptitude h.c.f & l.c.m
Quantitative aptitude h.c.f & l.c.mQuantitative aptitude h.c.f & l.c.m
Quantitative aptitude h.c.f & l.c.m
Dipto Shaha
 
Prime Factorisation
Prime FactorisationPrime Factorisation
Prime Factorisation
Swift Sonya
 
Mathematics for Grade 6: Prime Factorization - LCM
Mathematics for Grade 6: Prime Factorization - LCMMathematics for Grade 6: Prime Factorization - LCM
Mathematics for Grade 6: Prime Factorization - LCM
Bridgette Mackey
 
Ch. 5.1 - Least Common Multiple
Ch. 5.1 - Least Common MultipleCh. 5.1 - Least Common Multiple
Ch. 5.1 - Least Common Multiple
Kathy Favazza
 
HCF and LCM
HCF and LCMHCF and LCM
3 3
3 33 3
Prime Factorization
Prime FactorizationPrime Factorization
Prime Factorization
mmeddin
 
November 13
November 13November 13
November 13
khyps13
 
December 9, 2014
December 9, 2014December 9, 2014
December 9, 2014
khyps13
 
Factors and Multiples
Factors and MultiplesFactors and Multiples
Factors and Multiples
Ruby Rose Ann Panganod
 
20121031 fractions-pizza-slices-and-adding
20121031 fractions-pizza-slices-and-adding20121031 fractions-pizza-slices-and-adding
20121031 fractions-pizza-slices-and-adding
keithpeter
 
Factors and Multiples
Factors and MultiplesFactors and Multiples
Factors and Multiples
OsmanKhan58
 
2.6 notes
2.6 notes2.6 notes
2.6 notes
nglaze10
 
HCF and LCM
HCF and LCMHCF and LCM
HCF and LCM
PRIYANKA ABRAHAM
 
7-3 Common Factors and GCF
7-3 Common Factors and GCF7-3 Common Factors and GCF
7-3 Common Factors and GCF
Rudy Alfonso
 
Rational numbers Class 8 chapter 1
Rational numbers Class 8 chapter 1Rational numbers Class 8 chapter 1
Rational numbers Class 8 chapter 1
YogitaGupta34
 

What's hot (20)

Factors and greatest common factor
Factors and greatest common factorFactors and greatest common factor
Factors and greatest common factor
 
Factors, multiples and primes
Factors, multiples and primesFactors, multiples and primes
Factors, multiples and primes
 
Common Factors And Greatest Common Factor
Common Factors And Greatest Common FactorCommon Factors And Greatest Common Factor
Common Factors And Greatest Common Factor
 
Factors and multiples
Factors and multiplesFactors and multiples
Factors and multiples
 
Quantitative aptitude h.c.f & l.c.m
Quantitative aptitude h.c.f & l.c.mQuantitative aptitude h.c.f & l.c.m
Quantitative aptitude h.c.f & l.c.m
 
Prime Factorisation
Prime FactorisationPrime Factorisation
Prime Factorisation
 
Mathematics for Grade 6: Prime Factorization - LCM
Mathematics for Grade 6: Prime Factorization - LCMMathematics for Grade 6: Prime Factorization - LCM
Mathematics for Grade 6: Prime Factorization - LCM
 
Ch. 5.1 - Least Common Multiple
Ch. 5.1 - Least Common MultipleCh. 5.1 - Least Common Multiple
Ch. 5.1 - Least Common Multiple
 
HCF and LCM
HCF and LCMHCF and LCM
HCF and LCM
 
3 3
3 33 3
3 3
 
Prime Factorization
Prime FactorizationPrime Factorization
Prime Factorization
 
November 13
November 13November 13
November 13
 
December 9, 2014
December 9, 2014December 9, 2014
December 9, 2014
 
Factors and Multiples
Factors and MultiplesFactors and Multiples
Factors and Multiples
 
20121031 fractions-pizza-slices-and-adding
20121031 fractions-pizza-slices-and-adding20121031 fractions-pizza-slices-and-adding
20121031 fractions-pizza-slices-and-adding
 
Factors and Multiples
Factors and MultiplesFactors and Multiples
Factors and Multiples
 
2.6 notes
2.6 notes2.6 notes
2.6 notes
 
HCF and LCM
HCF and LCMHCF and LCM
HCF and LCM
 
7-3 Common Factors and GCF
7-3 Common Factors and GCF7-3 Common Factors and GCF
7-3 Common Factors and GCF
 
Rational numbers Class 8 chapter 1
Rational numbers Class 8 chapter 1Rational numbers Class 8 chapter 1
Rational numbers Class 8 chapter 1
 

Similar to Arithmetic 2

PPT_Q1W2_MATH 8.pptx
PPT_Q1W2_MATH 8.pptxPPT_Q1W2_MATH 8.pptx
PPT_Q1W2_MATH 8.pptx
DarenTolentino2
 
Lesson 18: Rational Exponents
Lesson 18: Rational ExponentsLesson 18: Rational Exponents
Lesson 18: Rational Exponents
Kevin Johnson
 
Factor
FactorFactor
1 ESO - UNIT 03 - DIVISIBILITY
1 ESO - UNIT 03 - DIVISIBILITY1 ESO - UNIT 03 - DIVISIBILITY
1 ESO - UNIT 03 - DIVISIBILITY
Gogely The Great
 
Gcse maths resources higher 01.1 primes number and prime index
Gcse maths resources higher 01.1 primes number and prime indexGcse maths resources higher 01.1 primes number and prime index
Gcse maths resources higher 01.1 primes number and prime index
LiveOnlineClassesInd
 
Polynomials part 1
Polynomials part 1Polynomials part 1
Polynomials part 1
Jessica Garcia
 
123a ppt-all-2
123a ppt-all-2123a ppt-all-2
123a ppt-all-2
math123a
 
Factors and multiples
Factors and multiples Factors and multiples
Factors and multiples
NeilfieOrit2
 
0.1.basic arith.&set
0.1.basic arith.&set0.1.basic arith.&set
0.1.basic arith.&set
m2699
 
4.1 prime factorization updated
4.1 prime factorization updated4.1 prime factorization updated
4.1 prime factorization updated
bweldon
 
4.1 prime factorization
4.1 prime factorization4.1 prime factorization
4.1 prime factorization
bweldon
 
CLASS VII -operations on rational numbers(1).pptx
CLASS VII -operations on rational numbers(1).pptxCLASS VII -operations on rational numbers(1).pptx
CLASS VII -operations on rational numbers(1).pptx
Rajkumarknms
 
4.1 prime factorization updated
4.1 prime factorization updated4.1 prime factorization updated
4.1 prime factorization updated
bweldon
 
Operations on Integers [Autosaved].pptx
Operations on Integers [Autosaved].pptxOperations on Integers [Autosaved].pptx
Operations on Integers [Autosaved].pptx
DynaAlonsagayLabinda
 
ch13powerpoint.ppt
ch13powerpoint.pptch13powerpoint.ppt
ch13powerpoint.ppt
JasminNarag2
 
factoring polynomials
factoring polynomialsfactoring polynomials
factoring polynomials
abigail Dayrit
 
Factoring by grouping ppt
Factoring by grouping pptFactoring by grouping ppt
Factoring by grouping ppt
Doreen Mhizha
 
Arithmetic one (1).
Arithmetic one (1).Arithmetic one (1).
Arithmetic one (1).
Adjex Academy
 
P2-Chp3-SequencesAndSeries from pure maths 2.pptx
P2-Chp3-SequencesAndSeries from pure maths 2.pptxP2-Chp3-SequencesAndSeries from pure maths 2.pptx
P2-Chp3-SequencesAndSeries from pure maths 2.pptx
ArafathAliMathsTeach
 
Common factor factorization
Common factor factorizationCommon factor factorization
Common factor factorization
Zaheer Ismail
 

Similar to Arithmetic 2 (20)

PPT_Q1W2_MATH 8.pptx
PPT_Q1W2_MATH 8.pptxPPT_Q1W2_MATH 8.pptx
PPT_Q1W2_MATH 8.pptx
 
Lesson 18: Rational Exponents
Lesson 18: Rational ExponentsLesson 18: Rational Exponents
Lesson 18: Rational Exponents
 
Factor
FactorFactor
Factor
 
1 ESO - UNIT 03 - DIVISIBILITY
1 ESO - UNIT 03 - DIVISIBILITY1 ESO - UNIT 03 - DIVISIBILITY
1 ESO - UNIT 03 - DIVISIBILITY
 
Gcse maths resources higher 01.1 primes number and prime index
Gcse maths resources higher 01.1 primes number and prime indexGcse maths resources higher 01.1 primes number and prime index
Gcse maths resources higher 01.1 primes number and prime index
 
Polynomials part 1
Polynomials part 1Polynomials part 1
Polynomials part 1
 
123a ppt-all-2
123a ppt-all-2123a ppt-all-2
123a ppt-all-2
 
Factors and multiples
Factors and multiples Factors and multiples
Factors and multiples
 
0.1.basic arith.&set
0.1.basic arith.&set0.1.basic arith.&set
0.1.basic arith.&set
 
4.1 prime factorization updated
4.1 prime factorization updated4.1 prime factorization updated
4.1 prime factorization updated
 
4.1 prime factorization
4.1 prime factorization4.1 prime factorization
4.1 prime factorization
 
CLASS VII -operations on rational numbers(1).pptx
CLASS VII -operations on rational numbers(1).pptxCLASS VII -operations on rational numbers(1).pptx
CLASS VII -operations on rational numbers(1).pptx
 
4.1 prime factorization updated
4.1 prime factorization updated4.1 prime factorization updated
4.1 prime factorization updated
 
Operations on Integers [Autosaved].pptx
Operations on Integers [Autosaved].pptxOperations on Integers [Autosaved].pptx
Operations on Integers [Autosaved].pptx
 
ch13powerpoint.ppt
ch13powerpoint.pptch13powerpoint.ppt
ch13powerpoint.ppt
 
factoring polynomials
factoring polynomialsfactoring polynomials
factoring polynomials
 
Factoring by grouping ppt
Factoring by grouping pptFactoring by grouping ppt
Factoring by grouping ppt
 
Arithmetic one (1).
Arithmetic one (1).Arithmetic one (1).
Arithmetic one (1).
 
P2-Chp3-SequencesAndSeries from pure maths 2.pptx
P2-Chp3-SequencesAndSeries from pure maths 2.pptxP2-Chp3-SequencesAndSeries from pure maths 2.pptx
P2-Chp3-SequencesAndSeries from pure maths 2.pptx
 
Common factor factorization
Common factor factorizationCommon factor factorization
Common factor factorization
 

Recently uploaded

Travis Hills' Endeavors in Minnesota: Fostering Environmental and Economic Pr...
Travis Hills' Endeavors in Minnesota: Fostering Environmental and Economic Pr...Travis Hills' Endeavors in Minnesota: Fostering Environmental and Economic Pr...
Travis Hills' Endeavors in Minnesota: Fostering Environmental and Economic Pr...
Travis Hills MN
 
Remote Sensing and Computational, Evolutionary, Supercomputing, and Intellige...
Remote Sensing and Computational, Evolutionary, Supercomputing, and Intellige...Remote Sensing and Computational, Evolutionary, Supercomputing, and Intellige...
Remote Sensing and Computational, Evolutionary, Supercomputing, and Intellige...
University of Maribor
 
Medical Orthopedic PowerPoint Templates.pptx
Medical Orthopedic PowerPoint Templates.pptxMedical Orthopedic PowerPoint Templates.pptx
Medical Orthopedic PowerPoint Templates.pptx
terusbelajar5
 
ANAMOLOUS SECONDARY GROWTH IN DICOT ROOTS.pptx
ANAMOLOUS SECONDARY GROWTH IN DICOT ROOTS.pptxANAMOLOUS SECONDARY GROWTH IN DICOT ROOTS.pptx
ANAMOLOUS SECONDARY GROWTH IN DICOT ROOTS.pptx
RASHMI M G
 
ESR spectroscopy in liquid food and beverages.pptx
ESR spectroscopy in liquid food and beverages.pptxESR spectroscopy in liquid food and beverages.pptx
ESR spectroscopy in liquid food and beverages.pptx
PRIYANKA PATEL
 
Micronuclei test.M.sc.zoology.fisheries.
Micronuclei test.M.sc.zoology.fisheries.Micronuclei test.M.sc.zoology.fisheries.
Micronuclei test.M.sc.zoology.fisheries.
Aditi Bajpai
 
Comparing Evolved Extractive Text Summary Scores of Bidirectional Encoder Rep...
Comparing Evolved Extractive Text Summary Scores of Bidirectional Encoder Rep...Comparing Evolved Extractive Text Summary Scores of Bidirectional Encoder Rep...
Comparing Evolved Extractive Text Summary Scores of Bidirectional Encoder Rep...
University of Maribor
 
如何办理(uvic毕业证书)维多利亚大学毕业证本科学位证书原版一模一样
如何办理(uvic毕业证书)维多利亚大学毕业证本科学位证书原版一模一样如何办理(uvic毕业证书)维多利亚大学毕业证本科学位证书原版一模一样
如何办理(uvic毕业证书)维多利亚大学毕业证本科学位证书原版一模一样
yqqaatn0
 
Equivariant neural networks and representation theory
Equivariant neural networks and representation theoryEquivariant neural networks and representation theory
Equivariant neural networks and representation theory
Daniel Tubbenhauer
 
8.Isolation of pure cultures and preservation of cultures.pdf
8.Isolation of pure cultures and preservation of cultures.pdf8.Isolation of pure cultures and preservation of cultures.pdf
8.Isolation of pure cultures and preservation of cultures.pdf
by6843629
 
The use of Nauplii and metanauplii artemia in aquaculture (brine shrimp).pptx
The use of Nauplii and metanauplii artemia in aquaculture (brine shrimp).pptxThe use of Nauplii and metanauplii artemia in aquaculture (brine shrimp).pptx
The use of Nauplii and metanauplii artemia in aquaculture (brine shrimp).pptx
MAGOTI ERNEST
 
Applied Science: Thermodynamics, Laws & Methodology.pdf
Applied Science: Thermodynamics, Laws & Methodology.pdfApplied Science: Thermodynamics, Laws & Methodology.pdf
Applied Science: Thermodynamics, Laws & Methodology.pdf
University of Hertfordshire
 
3D Hybrid PIC simulation of the plasma expansion (ISSS-14)
3D Hybrid PIC simulation of the plasma expansion (ISSS-14)3D Hybrid PIC simulation of the plasma expansion (ISSS-14)
3D Hybrid PIC simulation of the plasma expansion (ISSS-14)
David Osipyan
 
Phenomics assisted breeding in crop improvement
Phenomics assisted breeding in crop improvementPhenomics assisted breeding in crop improvement
Phenomics assisted breeding in crop improvement
IshaGoswami9
 
Deep Software Variability and Frictionless Reproducibility
Deep Software Variability and Frictionless ReproducibilityDeep Software Variability and Frictionless Reproducibility
Deep Software Variability and Frictionless Reproducibility
University of Rennes, INSA Rennes, Inria/IRISA, CNRS
 
molar-distalization in orthodontics-seminar.pptx
molar-distalization in orthodontics-seminar.pptxmolar-distalization in orthodontics-seminar.pptx
molar-distalization in orthodontics-seminar.pptx
Anagha Prasad
 
The binding of cosmological structures by massless topological defects
The binding of cosmological structures by massless topological defectsThe binding of cosmological structures by massless topological defects
The binding of cosmological structures by massless topological defects
Sérgio Sacani
 
Randomised Optimisation Algorithms in DAPHNE
Randomised Optimisation Algorithms in DAPHNERandomised Optimisation Algorithms in DAPHNE
Randomised Optimisation Algorithms in DAPHNE
University of Maribor
 
SAR of Medicinal Chemistry 1st by dk.pdf
SAR of Medicinal Chemistry 1st by dk.pdfSAR of Medicinal Chemistry 1st by dk.pdf
SAR of Medicinal Chemistry 1st by dk.pdf
KrushnaDarade1
 
What is greenhouse gasses and how many gasses are there to affect the Earth.
What is greenhouse gasses and how many gasses are there to affect the Earth.What is greenhouse gasses and how many gasses are there to affect the Earth.
What is greenhouse gasses and how many gasses are there to affect the Earth.
moosaasad1975
 

Recently uploaded (20)

Travis Hills' Endeavors in Minnesota: Fostering Environmental and Economic Pr...
Travis Hills' Endeavors in Minnesota: Fostering Environmental and Economic Pr...Travis Hills' Endeavors in Minnesota: Fostering Environmental and Economic Pr...
Travis Hills' Endeavors in Minnesota: Fostering Environmental and Economic Pr...
 
Remote Sensing and Computational, Evolutionary, Supercomputing, and Intellige...
Remote Sensing and Computational, Evolutionary, Supercomputing, and Intellige...Remote Sensing and Computational, Evolutionary, Supercomputing, and Intellige...
Remote Sensing and Computational, Evolutionary, Supercomputing, and Intellige...
 
Medical Orthopedic PowerPoint Templates.pptx
Medical Orthopedic PowerPoint Templates.pptxMedical Orthopedic PowerPoint Templates.pptx
Medical Orthopedic PowerPoint Templates.pptx
 
ANAMOLOUS SECONDARY GROWTH IN DICOT ROOTS.pptx
ANAMOLOUS SECONDARY GROWTH IN DICOT ROOTS.pptxANAMOLOUS SECONDARY GROWTH IN DICOT ROOTS.pptx
ANAMOLOUS SECONDARY GROWTH IN DICOT ROOTS.pptx
 
ESR spectroscopy in liquid food and beverages.pptx
ESR spectroscopy in liquid food and beverages.pptxESR spectroscopy in liquid food and beverages.pptx
ESR spectroscopy in liquid food and beverages.pptx
 
Micronuclei test.M.sc.zoology.fisheries.
Micronuclei test.M.sc.zoology.fisheries.Micronuclei test.M.sc.zoology.fisheries.
Micronuclei test.M.sc.zoology.fisheries.
 
Comparing Evolved Extractive Text Summary Scores of Bidirectional Encoder Rep...
Comparing Evolved Extractive Text Summary Scores of Bidirectional Encoder Rep...Comparing Evolved Extractive Text Summary Scores of Bidirectional Encoder Rep...
Comparing Evolved Extractive Text Summary Scores of Bidirectional Encoder Rep...
 
如何办理(uvic毕业证书)维多利亚大学毕业证本科学位证书原版一模一样
如何办理(uvic毕业证书)维多利亚大学毕业证本科学位证书原版一模一样如何办理(uvic毕业证书)维多利亚大学毕业证本科学位证书原版一模一样
如何办理(uvic毕业证书)维多利亚大学毕业证本科学位证书原版一模一样
 
Equivariant neural networks and representation theory
Equivariant neural networks and representation theoryEquivariant neural networks and representation theory
Equivariant neural networks and representation theory
 
8.Isolation of pure cultures and preservation of cultures.pdf
8.Isolation of pure cultures and preservation of cultures.pdf8.Isolation of pure cultures and preservation of cultures.pdf
8.Isolation of pure cultures and preservation of cultures.pdf
 
The use of Nauplii and metanauplii artemia in aquaculture (brine shrimp).pptx
The use of Nauplii and metanauplii artemia in aquaculture (brine shrimp).pptxThe use of Nauplii and metanauplii artemia in aquaculture (brine shrimp).pptx
The use of Nauplii and metanauplii artemia in aquaculture (brine shrimp).pptx
 
Applied Science: Thermodynamics, Laws & Methodology.pdf
Applied Science: Thermodynamics, Laws & Methodology.pdfApplied Science: Thermodynamics, Laws & Methodology.pdf
Applied Science: Thermodynamics, Laws & Methodology.pdf
 
3D Hybrid PIC simulation of the plasma expansion (ISSS-14)
3D Hybrid PIC simulation of the plasma expansion (ISSS-14)3D Hybrid PIC simulation of the plasma expansion (ISSS-14)
3D Hybrid PIC simulation of the plasma expansion (ISSS-14)
 
Phenomics assisted breeding in crop improvement
Phenomics assisted breeding in crop improvementPhenomics assisted breeding in crop improvement
Phenomics assisted breeding in crop improvement
 
Deep Software Variability and Frictionless Reproducibility
Deep Software Variability and Frictionless ReproducibilityDeep Software Variability and Frictionless Reproducibility
Deep Software Variability and Frictionless Reproducibility
 
molar-distalization in orthodontics-seminar.pptx
molar-distalization in orthodontics-seminar.pptxmolar-distalization in orthodontics-seminar.pptx
molar-distalization in orthodontics-seminar.pptx
 
The binding of cosmological structures by massless topological defects
The binding of cosmological structures by massless topological defectsThe binding of cosmological structures by massless topological defects
The binding of cosmological structures by massless topological defects
 
Randomised Optimisation Algorithms in DAPHNE
Randomised Optimisation Algorithms in DAPHNERandomised Optimisation Algorithms in DAPHNE
Randomised Optimisation Algorithms in DAPHNE
 
SAR of Medicinal Chemistry 1st by dk.pdf
SAR of Medicinal Chemistry 1st by dk.pdfSAR of Medicinal Chemistry 1st by dk.pdf
SAR of Medicinal Chemistry 1st by dk.pdf
 
What is greenhouse gasses and how many gasses are there to affect the Earth.
What is greenhouse gasses and how many gasses are there to affect the Earth.What is greenhouse gasses and how many gasses are there to affect the Earth.
What is greenhouse gasses and how many gasses are there to affect the Earth.
 

Arithmetic 2

  • 1. Adjex Academy 1 ARITHMETIC TWO by Adjex Academy Written by Cynthia Ufuoma Adjekukor
  • 2. CONTENTS oIntroduction oPrime Factorization oHighest Common Factor oLowest Common Multiple oRounding Integers oContact Details Adjex Academy 2
  • 3. INTRODUCTION  Any pair of natural number are called factors of their product.  E.g. what are factors of 18? 1 × 18 = 18 2 × 9 = 18 3 × 6 = 18  Therefore, the factors of 18 are: 1, 2, 3. 6, 9 and 18. Adjex Academy 3
  • 4. Introduction  A prime number is any natural number that is only divisible by itself and one (1). E.g. 2 ÷ 2 = 1 and 2 ÷ 1 = 2  A Prime number only has two factors; itself and one 7 ÷ 7 = 1 and 7 ÷ 1 = 7. 9 is not a Prime number. 9 ÷ 3 = 3.  Note that 1 is not a prime number because it is only divisible by itself (1). Thus, it has only one factor. Adjex Academy 4
  • 5. PRIME FACTORIZATION This is obtained by dividing a number by successively increasing prime numbers. E.g. 2, 3, 5, 7 …  Find the prime factors of 24 Therefore, the prime factors of 24 are 2 × 2 × 2 × 3 Adjex Academy 5
  • 6. HCF & LCM HIGHEST COMMON FACTOR (HCF) The HCF of two natural numbers is the largest factor that they have in common. LOWEST COMMON MULTIPLE (LCM)  The LCM is the Lowest natural number two natural numbers will divide into whole numbers of times. Find the HCF and LCM of 24 and 32 Adjex Academy 6
  • 7. HCF & LCM First look for the prime factors  24 = 2 × 2 × 2 × 3  32 = 2 × 2 × 2 × 2 × 2  HCF = 2 × 2 × 2 = 8 Adjex Academy 7
  • 8. HCF & LCM  LCM = 2 × 2 × 2 × 2 × 2 × 3 = 96 Adjex Academy 8
  • 9. ROUNDING INTEGERS  Integers are rounded to their nearest multiples of 10. If the number is less than half way to the nearest multiples of 10, it is rounded down to the previous multiples of 10.  But if the number is more than half way to the nearest multiples of 10, it is rounded up to the nearest multiples of 10.  And if the number is half way, it is either rounded down or up to the nearest multiples of 10. Adjex Academy 9
  • 10. Rounding Integers  Round the following to the multiples of 10. 34 ≅ 30 36 ≅ 40 35 ≅ 30 / 40 Adjex Academy 10
  • 11. CONTACT DETAILS Follow this YouTube link to watch the video on Arithmetic 2 https://youtu.be/woSnNTlHBxc Facebook: Adjex Academy LinkedIn: Adjex Academy Slideshare: Adjex Academy Instagram: adjex_academy E-mail: adjexacademy@gmail.com Adjex Academy 11