1734.5 × 1768.9 ÷ 1727.4 = 17?
8888 − 4444 + 222 = ?
4 × ? = 6924 ÷ 15
17 2/3 × 1 17/106= ?
51 × ? = 1632
4567.8 + (14 × 9.8) = 5038 − ?