Find 1 , 305 × 81 . Then estimate to check your answer. A. 1 , 305 × 81 = 85 , 705 Check : 1 , 000 × 8 = 80 , 000 B. 1 , 305 × 81 = 105 , 705 . Check : 1 , 400 × 90 = 12 , 600 C. 1 , 305 × 81 = 105 , 705 Check : 1 , 200 × 80 = 96 , 000 D. 1 , 305 × 81 = 105 , 705 Check : 1 , 300 × 80 = 104 , 000