He felt perplexed by the unexpected turn of events.
"Perplexed" means feeling puzzled or bewildered. "Confused" is a synonym, as both refer to a state of not understanding something.
96.03% of √225.02 × 14.98 = ? + 19.98
47.87% of 749.76 + 35.11% of 399.76 = √? + 23.15 × 20.87
2720.03 ÷ 79.98 x 39.9 = ? + 40.32
33.33% of 110.99 = 19.98% × 244.97 - √?
3.55% of 8120 – 66.66% of 540 = ? – 28% of 5500
1359.98 ÷ 30.48 × 15.12 = ? × 4.16
(0.89 3 + 1.64 3 +2.76 3 ) ÷ 5.89 = ?
12.06 × 19.02 + 12.94 × 14.87 + 152.09 = ?% of 498.98
(?)2 + 9.113 = 31.92 – 39.03
