The correct answer is D
25% of 300 + √(?) = 35% of 600 - 15% of 300
62 of 8 - 320 ÷ 4 = ?3 + 200
1123 + 1452 + 1015 - 2640 = ?
(30 × 0.80)⁴ ÷ (2160 ÷ 60)⁴ × (54 × 16)⁴ = (6 × 4)?+5
862 - 37 – ? = – 432
Find the simplified value of the expression:
32 + 12 x 108 ÷ 12 + 4 + 32 ÷ 16 x 3
{(81% of 800 + 28 × 4) – 27 × ?} = 11 × 20