(1) 7 5 ×5-3=7-3=4; (2) 14 9 × 5 6 + 14 9 × 1 6 = 14 9 ×( 5 6 + 1 6 )= 14 9 ×1= 14 9 ; 故答案为:×, 7 5 ×5-3=7-3=4;×, 14 9 × 5 6 + 14 9 × 1 6 = 14 9 ×( 5 6 + 1 6 )= 14 9 ×1= 14 9 .