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kosonge

  • one year ago

Indicate which property is illustrated in Step 2. Step 1 8 + (5 + 8) + 0 = 8 + (8 + 5) + 0 Step 2 = (8 + 8) + (5 + 0) Step 3 = (8 + 8) + 5 Step 4 = 16 + 5 commutative property of addition identity property of addition associative property of addition distributive property

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  1. anonymous
    • one year ago
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    Hi, I can help you with this. They're asking what was used in going from 8 + (8 + 5) + 0 (*) to (8+8) + (5 + 0) (**) First question: did the ORDER the #s are listed change in going from (*) to (**)?

  2. kosonge
    • one year ago
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    no just different ()'s

  3. anonymous
    • one year ago
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    Here's what I mean: In (*), the numbers (listed from left to right) are: 8, 8, 5, 0 In (**), they are: 8, 8, 5, 0 Did the order change? Did any #s change places?

  4. kosonge
    • one year ago
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    no

  5. anonymous
    • one year ago
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    Good. So, it's not a commutative law, because "commuting" has to do with "changing places". Now, did the GROUPING of the #s change? LIke, in 8 + (8+5) + 0, the 8 and the 5 are grouped together...

  6. anonymous
    • one year ago
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    By the way, the page below has memory devices for "commutative" versus "associative" which might be helpful for you: http://www.onemathematicalcat.org/algebra_book/online_problems/addition.htm

  7. anonymous
    • one year ago
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    Are you still there? Do you need a hint?

  8. anonymous
    • one year ago
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    OK, guess you're gone ... hope you figured it out. Have a great day!

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