1) 19*6+14*6 = 6(19+14) = 6*33 = 198
2) 9*7+7*3 = 7(9+3) = 7*12 = 84
3) 8*13+8*9 = 8(13+9) = 8*22 = 176
4) 10*5+5*9 = 5(10+9) = 5*19 = 95
5) 6*32-6*23 = 6(32-23) = 6*9 = 54
6) 15*10-8*10 = 10(15-8) = 10*7 = 70
7) 27*7-7*19 = 7(27-19) = 7*8 = 56
8) 91*17-17*18 = 17(91-18) = 17*73 = 1241