Course: Arithmetic Dnatube
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Lec 1 - Basic Addition
Basic Addition Introduction to addition. Multiple visual ways to represent addition.
Lec 2 - Addition 2
Addition 2 Adding 2-digit numbers
Lec 3 - Level 2 Addition
Level 2 Addition Adding a 2 digit number to a 1 digit number. Introduction to carrying.
Lec 4 - Addition 3
Addition 3 Practice carrying digits to add multiple digit numbers
Lec 5 - Addition 4
Addition 4 More practice carrying with multiple digit numbers
Lec 6 - Basic Subtraction
Basic Subtraction Introduction to subtraction
Lec 7 - Subtraction 2
Subtraction 2 Different ways to view subtraction
Lec 8 - Subtraction 3: Introduction to ...
Subtraction 3: Introduction to Borrowing or Regrouping Introduction to borrowing and regrouping
Lec 9 - Alternate mental subtraction method
Alternate mental subtraction method How I subtract in my head
Lec 10 - Why borrowing works
An explanation of why (not how) borrowing/regrouping works when subtracting numbers.
Lec 11 - Level 4 Subtraction
Level 4 Subtraction Subtraction of multi-digit numbers involving borrowing
Lec 12 - Why borrowing works
Why borrowing works An explanation of why (not how) borrowing/regrouping works when subtracting numbers
Lec 13 - Adding Decimals (Old)
Adding Decimals (Old) Adding decimals
Lec 14 - Subtracting decimals (old)
Subtracting decimals (old) Subtracting decimal numbers
Lec 15 - Basic Multiplication
Basic Multiplication Introduction to multiplication
Lec 16 - Multiplication 2: The Multiplic ...
Multiplication 2: The Multiplication Tables Introduction to the multiplication tables from 2-9.
Lec 17 - Multiplication 3: 10,11,12 time ...
Multiplication 3: 10,11,12 times tables Multiplication 3: Learning to multiply 10, 11, and 12.
Lec 18 - Multiplication 4: 2-digit times ...
Multiplication 4: 2-digit times 1-digit number Multiplying a 2-digit times a 1-digit number
Lec 19 - Multiplication 5: 2-digit time ...
Multiplication 5: 2-digit times a 2-digit number Multiplying a 2-digit number times a 2-digit number
Lec 20 - Multiplication 6: Multiple Digi ...
Multiplication 6: Multiple Digit Numbers Working our way up to multiplying multiple-digit numbers with each other
Lec 21 - Multiplication 7: Old video giv ...
Multiplication 7: Old video giving more examples 2 examples of multiplying a 3 digit number times a 2 digit number. 1 example of multiplying a 3 digit number times a 3 digit number.
Lec 22 - Mulitplication 8: Multiplying d ...
Mulitplication 8: Multiplying decimals (Old video) Multiplying decimals (www.khanacademy.org)
Lec 23 - Lattice Multiplication
Lattice Multiplication Introduction to lattice multiplication
Lec 24 - Why Lattice Multiplication Works
Why Lattice Multiplication Works Understanding why lattice multiplication works
Lec 25 - Division 1
Division 1 Introduction to division
Lec 26 - Division 2
Division 2 Dividing into larger numbers. Introduction to long division and remainders.
Lec 27 - Division 3: More long division ...
Division 3: More long division and remainder examples More long division and remainder examples
Lec 28 - Level 4 division
Level 4 division Dividing a two digit number into a larger number
Lec 29 - Converting fractions to decimals
Converting fractions to decimals How to express a fraction as a decimal
Lec 30 - Percent and decimals
Percent and decimals Expressing percentages as decimals. Expressing decimals as percentages.
Lec 31 - Dividing decimal
Dividing decimal Dividing decimal numbers
Lec 32 - Ordering Numeric Expressions
Ordering Numeric Expressions Converting percentages and fractions to decimals to order numbers
Lec 33 - Greatest Common Divisor
Greatest Common Divisor 4 example problems of determining the greatest common factor of two numbers by factoring the 2 numbers first
Lec 34 - Least Common Multiple
Least Common Multiple Example of figuring out the least common multiple of two nunmbers
Lec 35 - Equivalent fractions
Equivalent fractions Introduces the concept of equivalent fractions
Lec 36 - Mixed numbers and improper frac ...
Mixed numbers and improper fractions Converting mixed numbers to improper fractions and improper fractions to mixed numbers
Lec 37 - Time Differences 1
Time Differences 1 Finding how long passes between two times
Lec 38 - Time Differences in Different T ...
Time Differences in Different Time Zones Calculating flight times across time zones
Lec 39 - Prime Numbers
Prime Numbers Identifying prime numbers
Lec 40 - Partial Quotient Division
Partial Quotient Division An alternate to traditional long division
Lec 41 - Partial Quotient Method of Divi ...
Partial Quotient Method of Division 2 Another example of doing long division using the partial quotient method
Arithmetic
Source of these courses is khan
The most basic of the math playlists. Start here if you have very little background in math fundamentals (or just want to make sure you do). After watching this playlist, you should be ready for the pre-algebra playlist.
khan Website: http://www.dnatube.com/school/khan
