Math

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Math

• EXPONENTS
• SCIENTIFIC NOTATION
• PYTHAGORAS THEORM (FUN !!)

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GRADE 8 CARES !!!!
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EXPONENTS

• (2)4 means 24 2 x 2 x 2 x 2
• looks like 16
• -24 means find the opposite of two to
  
• the fourth power so..
• looks like -24 - ( 2 x 2 x
  2 x 2)
• -16
• (-2)4 means take -2 to the fourth power
• looks like (-2) 4 (-2) x
  (-2) x (-2) x (-2)
• 16

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• (-1)4 ??
• -14 ??

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NEGATIVE EXPONENTSa grade 8 topic!

• Means take the reciprocal and then take the power
  so.
• 2-3 (½) 3 ½ x ½ x ½ 1/8
• (-4)-3 (-¼)3 - ¼ x - ¼ x ¼ - 1 / 64

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Confused ??
Lets do some on the board !!