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Approach to changing the subject of a formula

Approach to changing the subject of a formula. Decide. Break. Repair. Simplify. The “Decide” step. @ BerwickMaths. Decide how to get to. @ BerwickMaths. Decide how to get to. @ BerwickMaths. Decide how to get to. @ BerwickMaths. Decide how to get to. @ BerwickMaths.

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Approach to changing the subject of a formula

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  1. Approach to changing the subject of a formula Decide Break Repair Simplify

  2. The “Decide” step @BerwickMaths

  3. Decide how to get to . @BerwickMaths

  4. Decide how to get to . @BerwickMaths

  5. Decide how to get to . @BerwickMaths

  6. Decide how to get to . @BerwickMaths

  7. Decide how to get to . @BerwickMaths

  8. Decide how to get to . @BerwickMaths

  9. Decide how to get to . @BerwickMaths

  10. Decide how to get to . @BerwickMaths

  11. Break and Repair Do you agree with the following? The last line is known as “breaking” because the calculation on the left is not equal to calculation on the right. How do I repair this mistake by altering the right hand side? Correcting the mistake is known as “repairing”.

  12. Your turn Worked examples Make the subject of the following formulae: Make the subject of the following formulae: Simplify. Break the formula. Decide how to get from to . Repair the formula. Repair the formula. Decide how to get from to . Break the formula. Simplify. @BerwickMaths

  13. Make the subject for each of the following formulae: @BerwickMaths

  14. Make the subject for each of the following formulae: @BerwickMaths

  15. The next “Decide” step @BerwickMaths

  16. Decide how to get to . @BerwickMaths

  17. Decide how to get to . @BerwickMaths

  18. Decide how to get to . @BerwickMaths

  19. Decide how to get to . @BerwickMaths

  20. Decide how to get to . @BerwickMaths

  21. Decide how to get to . @BerwickMaths

  22. Decide how to get to . @BerwickMaths

  23. Decide how to get to . @BerwickMaths

  24. Decide how to get to . @BerwickMaths

  25. Decide how to get to . @BerwickMaths

  26. Decide how to get to . @BerwickMaths

  27. Decide how to get to . @BerwickMaths

  28. Decide how to get to . Square @BerwickMaths

  29. Decide how to get to . Square root @BerwickMaths

  30. Your turn Worked examples Make the subject of the following formulae: Make the subject of the following formulae: Simplify. Break the formula. Decide how to get from to . Repair the formula. Simplify. Break the formula. Decide how to get from to . Repair the formula. @BerwickMaths

  31. Make the subject for each of the following formulae: @BerwickMaths

  32. The next “Decide” step @BerwickMaths

  33. Decide how to get to . @BerwickMaths

  34. Decide how to get to . @BerwickMaths

  35. Decide how to get to . @BerwickMaths

  36. Decide how to get to . @BerwickMaths

  37. Decide how to get to . @BerwickMaths

  38. Decide how to get to . @BerwickMaths

  39. Decide how to get to . @BerwickMaths

  40. Decide how to get to . @BerwickMaths

  41. Decide how to get to . @BerwickMaths

  42. Decide how to get to . @BerwickMaths

  43. Your Turn Worked Example Make the subject of the following formula: Make the subject of the following formula: Break the formula. Decide how to get from to . Repair the formula. Simplify. Simplify. Decide how to get from to . Break the formula. Repair the formula. @BerwickMaths

  44. Make the subject for each of the following formulae: @BerwickMaths

  45. The next “Decide” step @BerwickMaths

  46. Decide how to get to . @BerwickMaths

  47. Decide how to get to . @BerwickMaths

  48. Decide how to get to . @BerwickMaths

  49. Decide how to get to . @BerwickMaths

  50. Decide how to get to . @BerwickMaths

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