( V270 = 193 )( 90:10 \times 4 - (331 + 42:6 - 332) = 30 )( 207 - (56:8 \times 10) + (3 \times 2 \times 8 - 39) - 81:9 = 137 )( V100: (5 \times 4 + 35:7 - 1 \times 3 \times 5) + 989 = 1089 )( V111 + 222 + 333 - (4 \times 2 \times 9 + 18 + 60:6) = 788 )( 64 + (971 - 900 - 9 \times 7) + 8 \times 8 - 8:8 = 135 )7a. ( \frac{18}{2} = 9 ) 7b. ( (9 \times 8) - (9 + 8) = 72 - 17 = 55 ) 7c. 9 + 55 = 648a. ( \frac{100}{10} = 10 ) 8b. ( 10 \times 2 = 20 ) 8c. ( \frac{12}{2} \times 3 = 6 ) 8d. 20 - 6 = 14