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CHAPTER 1: STANDARD FORM

CHAPTER 1: STANDARD FORM. SIGNIFICANT FIGURE. DIGITS WHICH ARE RELEVANT IN AN INTEGER OR A DECIMAL NUMBER. 2. 3. 4. 5. 3*. 1. 2*. 4. 5. 5. 5. 8. 3. *  Special case. NOW…TRY THIS!. 3.000 => 245.00 => 0.00320 => 0.000030 => 0.02 =>

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CHAPTER 1: STANDARD FORM

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  1. CHAPTER 1:STANDARD FORM

  2. SIGNIFICANT FIGURE DIGITS WHICH ARE RELEVANT IN AN INTEGER OR A DECIMAL NUMBER 2 3 4 5 3* 1 2* 4 5 5 5 8 3 *  Special case

  3. NOW…TRY THIS! 3.000 => 245.00 => 0.00320 => 0.000030 => 0.02 => 0.02004800 => 4.0061 => 2500 => 4 5 3 2 1 7 5 or 3 or 4 2 Depend on the question

  4. ROUNDING OFF Round off to 1, 2 and 3 s.f 0.00453 8 1 2 3 4 0.005 – 1 s.f 0.004 5 3 8 0.004 5 3 8 0.0045 – 2 s.f 0.00454 – 3 s.f 0.004 5 3 8

  5. ROUNDING OFF 2 500 2540 3 000 3 2 000 3 1 600 3 0 000 2.07 2 2. 1 0.006 0.0062 0.00617 0.71 0.715 0.7

  6. NOW…TRY THIS! • 2.61 (1 S.F) • 2.386 (2 S.F) • 5217 (2 S.F) • 5217 (3 S.F) • 0.829 (2 S.F) • 0.06127 (2 S.F) • 0.12015 (3 S.F)

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