Find the wrong number.
17, 25, 37, 47, 65, 81
4² + 1 = 17 5² = 25 6² + 1 = 37 7² = 49 8² + 1 = 65 9² = 81
375% of 320 - 80% of 40 ÷ √256 = ?
√? = 80% of 720 - 22% of 2500
9999² + 1111² =?
What is the value of 143 + 163 + 183 + … + 303?
45% of 360 - 160 + ? = √324
Find the value of {(3125) (n/5) × 5 (2n + 2) }/ {25 n × 5 (n - 1) }
263 + 1152 - ? + 577 = 1333
? + 156 ÷ 3 × 7 = 35% of 400 + (13)2
(72 + 30) ÷ 6 + [{75 ÷ 25) + 6} × 2] = ?
34 × 2.5 + 6.4 × 1.5 – 4.8 × 1.2 =?
