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Number properties!
Associative,Commutative, inverse, identity, distrubutive
Question | Answer |
---|---|
Commutative Property | Change order: a + b = b + a 4 + 6 = 6 + 4 |
Associative Property | Always same: Think moving cheeks. a+(b+c)=(a+b) + c (7+3)+5 = 7+(3+5) |
Inverse Property | Opposite! (a) + (-a) = 0 1/a * a/1 = 1 8 + (-8) = 0 1/9 * 9/1 = 1 |
Diatributive Property | Distribute a number through a parenthesis. Watch for negatives! The sign always goes with the number behind it! a(b+c) = ab + ac 3(a+6) = 3a + 18 |
Identity Property | No one can change your! a + 0 = a a * 1 = a 4 + 0 = 4 31 * 1 =31 |