805 × 712 – 304 × 501 + 834 × (245 × 10 – 2300) (708 × 398 – 892 × 211) : 93572 + 209 (10000 – 1867) × (10201 – 8634) + 204 × 18 (367710 : 35 + 302 × 49) – 50702 : 101 901 × 701 + (20000 – 18904) × 99 – 208 × 400 (1067154 : 4807 + 707 × 390) – 14904 : 23
1) 805×712-304×501+834×(245×10-2300)(708×398-892×211):93572+209 (10000-1867)×(10201-8634)+204×18=26641315227 2) (367710:35+302×49)-50702:10×1901×701+(20000-18904)×99-208×400 (1067154:4807+707×390)-14904:23=-29715626830,20