1) (256 + 343) - 156 = (256 - 156) + 343 = 100 + 343 = 443
3) 495 - (157 + 295) = (495 - 295) - 157 = 200 - 157 = 43
1) (256 + 343) - 156 = (256 - 156) + 343 = 100 + 343 = 443
3) 495 - (157 + 295) = (495 - 295) - 157 = 200 - 157 = 43