[b][color=#ff0000]Compensative Law[/color][/b][br]If you round off a number by adding or subtracting a number and then compensate by adding or subtracting the opposite of that number without changing the result, the sum has compensative properties. [br][color=#0000ff][b]Example:[/b][/color]    367 + 154[br]  = 367 + 3 + 154 - 3[br](round the first number off to nearest 100 and compensate by subtracting 3 to the second number).[br]  =  370 + 151[br]  =  521[br][b][color=#0000ff]Example (careful with subtraction): [/color][/b]    356 – 247[br]          = 356 + 3 - 247 - 3[br](round the second number off to nearest 100 and compensate by adding 3 to the first number).[br]          = 359 - 250[br]          = 109  [br][b][color=#ff0000]Addition and subtraction are both compensative[/color][/b]

B2B Algebra[br]A01 General introduction[br]C002 Compensation Laws