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samtab

  • one year ago

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:(

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  1. jim_thompson5910
    • one year ago
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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

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

  3. precal
    • one year ago
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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

  4. precal
    • one year ago
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    jim_thompson5910 is correct

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

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

  7. samtab
    • one year ago
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    ow its c

  8. jim_thompson5910
    • one year ago
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    you sure?

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

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

  11. samtab
    • one year ago
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    comunitive

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

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