Fill in the blank boxes with the correct numbers.

Решение:

Для решения каждого уравнения нужно найти неизвестное число, которое стоит в пустой рамке.

1. \( x + 17 = 85 \)
   \( x = 85 - 17 \)
   \( x = 68 \)
2. \( x + 22 = 70 \)
   \( x = 70 - 22 \)
   \( x = 48 \)
3. \( 51 + x = 138 \)
   \( x = 138 - 51 \)
   \( x = 87 \)
4. \( 68 + x = 100 \)
   \( x = 100 - 68 \)
   \( x = 32 \)
5. \( x + 85 = 144 \)
   \( x = 144 - 85 \)
   \( x = 59 \)
6. \( x - 20 = 40 \)
   \( x = 40 + 20 \)
   \( x = 60 \)
7. \( x - 52 = 17 \)
   \( x = 17 + 52 \)
   \( x = 69 \)
8. \( 44 - x = 23 \)
   \( x = 44 - 23 \)
   \( x = 21 \)
9. \( 178 - x = 99 \)
   \( x = 178 - 99 \)
   \( x = 79 \)
10. \( x - 51 = 214 \)
    \( x = 214 + 51 \)
    \( x = 265 \)
11. \( x \cdot 5 = 325 \)
    \( x = 325 : 5 \)
    \( x = 65 \)
12. \( x \cdot 17 = 119 \)
    \( x = 119 : 17 \)
    \( x = 7 \)
13. \( 21 \cdot x = 231 \)
    \( x = 231 : 21 \)
    \( x = 11 \)
14. \( 48 \cdot x = 0 \)
    \( x = 0 : 48 \)
    \( x = 0 \)
15. \( x \cdot 34 = 204 \)
    \( x = 204 : 34 \)
    \( x = 6 \)

Ответ: 68, 48, 87, 32, 59, 60, 69, 21, 79, 265, 65, 7, 11, 0, 6.