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29 March, 14:07

Use estimation to determine which of the following expressions is greater. Explain how you got your answer. 5 * (1.9 + 3.15) and 6.9 * (0.2 + 3.2)

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  1. 29 March, 14:50
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    The first parenthesis go first
  2. 29 March, 15:53
    0
    The first one is greater. Adding 3.2 and 0.2 is easy! It's 3.4! Make that 3. Make 6.9, 7. 7*3=21. For the first one, make 1.9, 2. Then Make 3.15, 3. 5*5=25. That is why the first one is greater.
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