8. 648 720 : 68 + 506 ⋅ 108 – 63 295, 608 ⋅ 506 – 236 ⋅ 400 + 8 716, 286 996 : (1 010 – 553) + 164 268 : 324, 1 000 000 – (700 800 + 425 ⋅ 704) + 25

Решение:

1. 648 720 : 68 + 506 ⋅ 108 – 63 295
   \( 648720 : 68 = 9540 \)
   \( 506 \cdot 108 = 54648 \)
   \( 9540 + 54648 - 63295 = 64188 - 63295 = 893 \)
2. 608 ⋅ 506 – 236 ⋅ 400 + 8 716
   \( 608 \cdot 506 = 307648 \)
   \( 236 \cdot 400 = 94400 \)
   \( 307648 - 94400 + 8716 = 213248 + 8716 = 221964 \)
3. 286 996 : (1 010 – 553) + 164 268 : 324
   \( 1010 - 553 = 457 \)
   \( 286996 : 457 = 628 \)
   \( 164268 : 324 = 507 \)
   \( 628 + 507 = 1135 \)
4. 1 000 000 – (700 800 + 425 ⋅ 704) + 25
   \( 425 \cdot 704 = 299200 \)
   \( 700800 + 299200 = 1000000 \)
   \( 1000000 - 1000000 + 25 = 0 + 25 = 25 \)

Ответ:

• 893
• 221 964
• 1 135
• 25