No 3. Perform the division, showing the detailed record. For example: 96:3 = (90+6):3 = 90:3 + 6:3 = 30+2=32

Решение:

1. 78 : 6
   \( 78 = 60 + 18 \)
   \( (60 + 18) : 6 = 60 : 6 + 18 : 6 = 10 + 3 = 13 \)
2. 84 : 3
   \( 84 = 60 + 24 \)
   \( (60 + 24) : 3 = 60 : 3 + 24 : 3 = 20 + 8 = 28 \)
3. 57 : 3
   \( 57 = 30 + 27 \)
   \( (30 + 27) : 3 = 30 : 3 + 27 : 3 = 10 + 9 = 19 \)
4. 62 : 2
   \( 62 = 60 + 2 \)
   \( (60 + 2) : 2 = 60 : 2 + 2 : 2 = 30 + 1 = 31 \)
5. 74 : 2
   \( 74 = 60 + 14 \)
   \( (60 + 14) : 2 = 60 : 2 + 14 : 2 = 30 + 7 = 37 \)
6. 75 : 5
   \( 75 = 50 + 25 \)
   \( (50 + 25) : 5 = 50 : 5 + 25 : 5 = 10 + 5 = 15 \)
7. 48 : 3
   \( 48 = 30 + 18 \)
   \( (30 + 18) : 3 = 30 : 3 + 18 : 3 = 10 + 6 = 16 \)
8. 24 : 3
   \( 24 = 18 + 6 \)
   \( (18 + 6) : 3 = 18 : 3 + 6 : 3 = 6 + 2 = 8 \)

Ответ: 13, 28, 19, 31, 37, 15, 16, 8.