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©2009 – Not to be sold/Free to use
Stage 5 Year 9 Rational Numbers Index Notation Division Press Ctrl-A ©2009 – Not to be sold/Free to use
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Evaluating Numbers in Index Notation
Division with Indices using expanded notation. 2x2x2x2x2 = 2x2 = 22 25 23 = 2x2x2 5x5x5x5x5x5x5 5752= = 5x5x5x5x5 = 55 5x5 3x3x3x3x3x3x3 37 34 = = 3x3x3 = 33 3x3x3x3 2
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Evaluating Numbers in Index Notation
Rule: Division with Indices am an = am+n 25 22 = 25-2 = 23 57 52 = 57-2 = 55 34 37 = 34-7 = 3-3 3 Contents
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Evaluating Numbers in Index Notation
Exercises 39 ÷ 37 = 32 56 ÷ 52 = 54 85 ÷ 82 = 83 27 ÷ 2 = 26 109 ÷ 105 = 103 118 ÷ 115 = 113 156 ÷ 155 = 15 206 ÷ 203 = 203
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