(348 +594): 6 (912-144): 4 (704-136): 8 (981 – 567) : 9

To solve these equations, we follow the order of operations (PEMDAS), where we first perform any calculations inside parentheses, then exponentiation, multiplication and division (from left to right), and finally addition and subtraction (from left to right).

1. (348 + 594): 6
   • First, we perform the addition inside the parentheses: 348 + 594 = 942
   • Then, we divide the result by 6: 942 ÷ 6 = 157

The result is 157.

2. (912 - 144): 4
   • First, we perform the subtraction inside the parentheses: 912 - 144 = 768
   • Then, we divide the result by 4: 768 ÷ 4 = 192

The result is 192.

3. (704 - 136): 8
   • First, we perform the subtraction inside the parentheses: 704 - 136 = 568
   • Then, we divide the result by 8: 568 ÷ 8 = 71

The result is 71.

4. (981 - 567) : 9
   • First, we perform the subtraction inside the parentheses: 981 - 567 = 414
   • Then, we divide the result by 9: 414 ÷ 9 = 46

The result is 46.

Therefore, the solutions to the given equations are:

1. (348 + 594): 6 = 157
2. (912 - 144): 4 = 192
3. (704 - 136): 8 = 71
4. (981 - 567) : 9 = 46