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    Arithmetic

    All lectures: All lectures on the discipline: arithmetic are collected here. These fascinating lectures provide us with the opportunity to explore the deep principles and phenomena underlying our knowledge and our desire to understand the world.


    1. Арифметика начало
    2. Арифметика числа 1 2 3 4 5 6 7 8 9
    3. Number 1
    4. Number 2
    5. Number 3
    6. Number 4
    7. Number 5
    8. Number 6
    9. Number 7
    10. Number 8
    11. Number 9
    12. Number 0
    13. Number 10
    14. Прямой счет
    15. Обратный счет
    16. Count on 1 (addition)
    17. Counting on 1 (subtract 1)
    18. Addition (introduction)
    19. Subtraction (introduction)
    20. Laws of arithmetic
    21. Addition to the column
    22. Division with remainder
    23. Bar Division - explanation and examples
    24. Ranks and Classes Explanation and Examples
    25. The order of arithmetic operations (operations)
    26. Multiply in a column
    27. Decimal Fractions
    28. Decimal multiplication
    29. Decimal Division Explanation and Examples
    30. Decimal Comparison
    31. How to read decimals
    32. Decimals
    33. Subtract Decimals Explanation Examples
    34. Ordinary Shot
    35. Reduction of ordinary fractions
    36. Comparison of ordinary fractions explanation and examples
    37. Mixed Numbers Isolation of the whole part of an ordinary fraction
    38. Addition of ordinary fractions. Common denominator
    39. Subtraction of ordinary fractions explanation and examples
    40. Multiplication of ordinary fractions
    41. Division of common fractions explanation and examples
    42. Finding the fraction by number
    43. Finding the number of its ordinary fraction
    44. Conversion of ordinary fractions to decimal
    45. Periodic fraction
    46. Add and subtract properties
    47. Multiplication and division properties
    48. Digit terms
    49. Mutually inverse numbers. Reciprocal Fractions
    50. Integers
    51. Finding the greatest common divisor (GCD)
    52. The least common multiple of the NOC
    53. Rounding numbers
    54. Decimal rounding. Examples
    55. Interest in Math
    56. Interest actions
    57. Tasks for interest
    58. solution and concentration tasks
    59. Tasks for deposits and discount
    60. Average
    61. Expression simplification
    62. Solving simple equations (positive numbers only)
    63. Solving complex equations (positive numbers only)
    64. Numeric and alphabetic expressions
    65. Scale and Mathematics
    66. Ratio of numbers
    67. Proportions
    68. Problem Solving the Proportion
    69. Signs of divisibility by 2, 4 and 8
    70. Signs of divisibility by 3, 6 and 9
    71. Signs of divisibility by 5,10,25 and 100
    72. Sign of divisibility by 11
    73. Negative numbers Coordinate line
    74. Opposite numbers Coordinates of points on the number axis
    75. Addition of negative numbers
    76. Subtract negative numbers
    77. The absolute value of a number
    78. Multiplication of negative numbers
    79. Division of negative numbers
    80. Coordinate system. Coordinate quarters
    81. How to find and record the coordinates of a point
    82. Rational numbers
    83. Comparison of rational numbers
    84. Whole numbers
    85. What is the power of the number? Exposure to the power of the negative number? Procedure in the examples with degrees
    86. Degree properties
    87. Fraction raising
    88. Formulas of abbreviated multiplication
    89. Square root fractional number
    90. Properties of arithmetic roots
    91. Irrational numbers
    92. Geometric mean
    93. Factorial
    94. Number theory