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samtab Group Title

Which property would allow you to use mental computation to simplify the problem 27 + 15 + 3 + 5? a,commutative property of addition b,distributive property c,additive identity d,additive inverse please help me:(

  • one year ago
  • one year ago

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  1. jim_thompson5910 Group Title
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    Hint: 27 + 15 + 3 + 5 may be easier to do in your head if you swap 15 and 3 to get 27 + 3 + 15 + 5

    • one year ago
  2. precal Group Title
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    commutative propery commutative property of addition a+b=b+a commutative property of multiplication ab=ba

    • one year ago
  3. precal Group Title
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    using words commutative property allows you to add numbers in any order a+b=b+a or 12+3=3+12 for the second case it allows you to multiply numbers in any order ab=ba 2*5=5*2

    • one year ago
  4. precal Group Title
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    jim_thompson5910 is correct

    • one year ago
  5. samtab Group Title
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    so it b???

    • one year ago
  6. jim_thompson5910 Group Title
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    re-read what precal wrote

    • one year ago
  7. samtab Group Title
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    ow its c

    • one year ago
  8. jim_thompson5910 Group Title
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    you sure?

    • one year ago
  9. samtab Group Title
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    no not really:(

    • one year ago
  10. jim_thompson5910 Group Title
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    which property did precal mention?

    • one year ago
  11. samtab Group Title
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    comunitive

    • one year ago
  12. jim_thompson5910 Group Title
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    that's your answer

    • one year ago
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