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Line up three tiles worth the same

Exercise and reference answers

Grid
    1. Group
      Eight
      Item
      4+4
    2. Group
      Sixteen
      Item
      4²
    3. Group
      Sixteen
      Item
      8+8
    1. Group
      Nine
      Item
      6+3
    2. Group
      Eight
      Item
      2³
    3. Group
      Sixteen
      Item
      16
    1. Group
      Nine
      Item
      3²
    2. Group
      Eight
      Item
      8
    3. Group
      Nine
      Item
      9
Groups
  1. Item
    Eight
  2. Item
    Nine
  3. Item
    Sixteen
Instructions
Swap two neighbouring tiles to line up three that are worth the same amount.

Explanation

_Source: OpenStax Prealgebra, Ch 2 The Language of Algebra, section Simplify Expressions with Exponents_
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