6. 28+42:7-6 96-72:9+15 32+56:8-7 100-7.8 90-8.8 80-9.8 74:= 8 (ост. [] ) 65:=7 (ост. []) 85:= 9 (ост. [])

Ответ: 28+42:7-6 = 28; 96-72:9+15 = 103; 32+56:8-7 = 32; 100-7 \cdot 8 = 44; 90-8 \cdot 8 = 26; 80-9 \cdot 8 = 8; 74:9= 8 (ост. 2); 65:9=7 (ост. 2); 85:9= 9 (ост. 4)

1. 28+42:7-6 = 28 + 6 - 6 = 34 - 6 = 28

2. 96-72:9+15 = 96 - 8 + 15 = 88 + 15 = 103

3. 32+56:8-7 = 32 + 7 - 7 = 39 - 7 = 32

4. 100-7 \cdot 8 = 100 - 56 = 44

5. 90-8 \cdot 8 = 90 - 64 = 26

6. 80-9 \cdot 8 = 80 - 72 = 8

7. 74 : 9 = 8 (остаток 2)

8. 65 : 9 = 7 (остаток 2)

9. 85 : 9 = 9 (остаток 4)

Ответ: 28+42:7-6 = 28; 96-72:9+15 = 103; 32+56:8-7 = 32; 100-7 \cdot 8 = 44; 90-8 \cdot 8 = 26; 80-9 \cdot 8 = 8; 74:9= 8 (ост. 2); 65:9=7 (ост. 2); 85:9= 9 (ост. 4)