√14400 x √8100 - (60)² = ? + (80)²
9 × 40× 242 × 182= ?2
?2 = √20.25 × 10 + √16 + 32
(25 × 12 + 30 × 8 – 22 × 10) = ?
18 × 15 + 86 – 58 =? + 38
14 × 11 + 25 – ? = 21% of 300
25% of 720 + 16% of 450 - 44% of 550 = ?
54 - 78 + 1518 + 1653 – 1252 = ?
3% of 842 ÷ 2% of 421 = ?
