Khan Academy, , Prof. Salman Khan
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Updated On 02 Feb, 19
Basic Addition - Addition - Basic Subtraction - introduction to Borrowing or Regrouping - Alternate mental subtraction method - Why borrowing works-Why borrowing works - Adding Decimals -Subtracting decimals - Basic Multiplication - Multiplication 2: The Multiplication Tables - 10,11,12 times tables, 2-digit times 1-digit number, Multiple Digit Numbers,Old video giving more examples,Multiplying decimals (Old video)
Lattice Multiplication - Why Lattice Multiplication Works - Division - More long division and remainder examples - Converting fractions to decimals - Percent and decimals - Dividing decimal -Ordering numeric expressions - Greatest Common Divisor - Least Common Multiple-Equivalent fractions - Mixed numbers and improper fractions
4.1 ( 11 )
How I subtract in my head
Sep 12, 2018
Excellent course helped me understand topic that i couldn't while attendinfg my college.
March 29, 2019
Great course. Thank you very much.