Number

Intl. Baccalaureate Board > Class 4 > Math (Total Videos: 138)

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Chapter 1: Number (79 videos)   (Practice Test)
1.1: Whole Numbers
  1. Place value of numbers up to 6 digits
  2. Comparison of numbers up to 100,000
  3. Round whole numbers to nearest 10 or 100
  4. Round whole numbers to nearest 10 or 100 on number line
  5. Ascending order of numbers up to 100,000
  6. Descending order of numbers up to 100,000
1.2: Addition and Subtraction
  1. Vertically add 4-digit numbers with carrying
  2. Horizontally add 4-digit numbers with carrying
1.3: Multiplication and Division  (Practice Test)
  1. Fluently multiply numbers within 100
  2. Factors and multiples of numbers
  3. Use tables of multiplication to divide numbers
  4. Divide numbers with 1-digit number using place value for zero remaind
  5. Divide numbers with 1-digit number using place value for non-zero rem
  6. Prime factorization of a number by division method
  7. Prime factorization of a number by tree method
  8. Prime numbers and composite numbers
  9. Multiply numbers by 10, 100 and 1000
  10. Multiply 1-digit whole numbers by multiples of 10 using place value
  11. Multiply 1-digit whole numbers by multiples of 10 using properties of
  12. Multiply 2-digit numbers by 1-digit numbers
  13. Divide 2-digit number by 1-digit number
  14. Divide numbers with 1-digit number using area model for zero remainder
  15. Distributive property of multiplication over addition and subtraction
1.4: Fractions and Decimals  (Practice Test)
  1. Convert decimals to fractions (up to 3 decimal places)
  2. Convert fractions to decimals
  3. Round decimals using place value to nearest whole or decimal number
  4. Compare two unlike fractions by making common denominator
  5. Compare two unlike fractions by comparing to a benchmark fraction
  6. Equivalent fractions using number line
  7. Equivalent fractions
  8. Simplify fractions to lowest form
  9. Reading decimal numbers to thousandths
  10. Recognize percentage as a special kind of fraction
  11. Convert Whole number percentage to fraction
  12. Concept of ratio
  13. Convert improper fractions to mixed fractions
  14. Convert mixed fractions to improper fractions
  15. Convert improper fractions to mixed fractions using model
  16. Convert mixed fractions to improper fractions using model
  17. Ascending order of fractions
  18. Descending order of fractions
  19. Solve addition word problem of like fractions by making equation
  20. Solve subtraction word problem of unlike fractions by making equation
  21. Word problem on multiplication of a whole number by a fraction
  22. Word problem on Multiplication of mixed fractions with Whole numbers
  23. Word problem on Multiplication of mixed fractions with simple fractio
  24. Word problem on divide a unit fraction by a whole number
  25. Word problem on divide a whole number by a unit fraction
  26. Solve real life problems involving division of fractions
  27. Word problem on division of whole numbers with fractional answers
  28. Add two or more unlike fractions
  29. Add like denominator mixed fractions using relation b/w addition and
  30. Add and subtract unlike fractions with different denominators
  31. Multiply two simple fractions
  32. Modeling fraction multiplication
  33. Multiply mixed fractions with simple fractions
  34. Multiply 2 or more fractions involving brackets
  35. Divide a fraction by another fraction
  36. Divide a unit fraction by a whole number
  37. Divide a whole number by a unit fraction
  38. Add decimals up to 2 decimal places
  39. Use models to add decimals to hundredths
  40. Use place value to add decimals to hundredths
  41. Use properties of operation to add decimals to hundredths
  42. Subtract decimals up to 2 decimal places
  43. Use models to subtract decimals to hundredths
  44. Use place value to subtract decimals to hundredths
  45. Multiply a decimal by 10, 100 and 1000
  46. Multiply a decimal by a 1-digit number
  47. Use models to multiply decimals to hundredths
  48. Use place value to multiply decimals to hundredths
  49. Multiply a decimal number by tenth and hundredths
  50. Divide a decimal by a 1-digit number
  51. Placement of the decimal after dividing by a power of 10
  52. Divide a decimal number by a decimal number by converting it to fract
  53. Divide a decimal number by a decimal number using direct division
  54. Use models to divide decimals to hundredths
  55. Use place value to divide decimals to hundredths
  56. Solve real life problems involving decimals up to 2 decimal places
  57. Simplify decimal expressions involving brackets