Решение:
- \( 600 \times 70 = 42000 \)
- \( 400 : 400 = 1 \)
- \( 400 \times 40 = 16000 \)
- \( 300 : 30 = 10 \)
- \( 700 \times 10 = 7000 \)
- \( 6400 : 8 = 800 \)
- \( 400 \times 80 = 32000 \)
- \( 160 : 40 = 4 \)
- \( 800 \times 80 = 64000 \)
- \( 7000 : 10 = 700 \)
- \( 900 \times 90 = 81000 \)
- \( 3200 : 8 = 400 \)
Ответ: 42000, 1, 16000, 10, 7000, 800, 32000, 4, 64000, 700, 81000, 400.