94: 3 + 512: 4,234 4 - 147 5,672 : 8 - 441: 9= 94 + 128 (approximately) - 7352 - 49= 173 - 7352 - 49= - 7218
94: 3 + 512: 4,234 4 - 147 5,672 : 8 - 441: 9
= 94 + 128 (approximately) - 7352 - 49
= 173 - 7352 - 49
= - 7218