0000 In base 0, what is -000000000 + -0? -000000000 In base 0, what is -00000000000 + 0000? -00000000000 In base 00, what is 0 - 00000000? -00000000 In base 0, what is -00000000 + 000000000000? 000000000000 In base 0, what is 0000000 + -000? 0000000 In base 0