a. 967364 + (20625 + 72438) 420785 + (420625 – 72438) b. (47028 + 36720) + 43256 (35290 + 47658) – 57302 c. (72058 – 45359) + 26705 (60320 – 32578) –
a. 967364 + (20625 + 72438) 420785 + (420625 – 72438) b. (47028 + 36720) + 43256 (35290 + 47658) – 57302 c. (72058 – 45359) + 26705 (60320 – 32578) – 17020