(45)2 + (21)2 = (?)2 + 257
3.2% of 250 + 1.8% of 400 = ?
140% of 450 + 24% of 650 = ?
72% of 654 – 41% of 312 = ?
205 × ? × 13 = 33625 + 25005
3.3 + 13.33 + 31.13 + 13.31 + 1.3 = ?
87146 – 66425 – 15693 = ?
666.06 + 66.60 + 0.66 + 6.06 + 6 + 60 = ?
15.594 – 4.312 – 3.517 – 1.689 = ?
69 ÷ 3 × 0.85 + 14.5 – 3 = ?
54679 + 34521 = ? + 43668
67539 + 43908 = ? + 78902
73% of 5800 – 69% of 240 = ?
23.56 + 134.44 + 4142.25 = ?
68% of 595 – 43% of 372 = ?
125% of 560 + 22% of 450 = ?
35% of 430 + ? % of 360 = 276.5
4.5 + 23.50 + 14.58 – 17.68 × 0.5 = ?
1.05% of 2500 + 2.5% of 440 = ?
2.28 × 12.5 – 6.5 × 2.4 =