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Arithmetic

Arithmetic

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.

  1. Basic Addition
  2. Addition 2
  3. Level 2 Addition
  4. Addition 3
  5. Addition 4
  6. Basic Subtraction
  7. Subtraction 2
  8. Subtraction 3: Introduction to Borrowing or Regrouping
  9. Alternate mental subtraction method
  10. Level 4 Subtraction
  11. Why borrowing works
  12. Adding Decimals
  13. Subtracting decimals
  14. Basic Multiplication
  15. Multiplication 2: The Multiplication Tables
  16. Multiplication 3: 10,11,12 times tables
  17. Multiplication 4: 2-digit times 1-digit number
  18. Multiplication 5: 2-digit times a 2-digit number
  19. Multiplication 6: Multiple Digit Numbers
  20. Multiplication 7: Old video giving more examples
  21. Mulitplication 8: Multiplying decimals (Old video)
  22. Lattice Multiplication
  23. Why Lattice Multiplication Works
  24. Division 1
  25. Division 2
  26. Division 3: More long division and remainder examples
  27. Level 4 division
  28. Converting fractions to decimals
  29. Percent and decimals
  30. Dividing decimal
  31. Ordering numeric expressions
  32. Greatest Common Divisor
  33. Least Common Multiple
  34. Equivalent fractions
  35. Mixed numbers and improper fractions
  36. Time Differences 1
  37. Time Differences in Different Time Zones
  38. Prime Numbers