Real Number System
R I Q Z W N I R N W Z Q pi, non perfect square roots .34, 13 .222, -7 7, -10, 0, 8 0, 20 root 16, 90 10, 47, root 9, 34 R, Q, Z R, I R, Q, Z, W, N R, Q R, Q, Z R, Q R, Q, Z, W R, Q R, Q R, Q, Z, W, N R, Q R, Q, Z, W, N a+b=b+a a*b=b*a (a+b)+c=a+(b+c) (a*b)*c=a*(b*c) a+0=a a*1=a a+(-a)=0 a*(1 Associative Distributive Inverse Commutative Associative Inverse Distributive Identity 8 (-1 (-2 (3 -6w (1