F > E > B > D > C > A > G
120% of 400 + ?% of 520 = 1000
36% of 250 + 26 ÷ 2 × ? = 207
12 of 8 - 9 ÷ 3 × 16 - 17 + 6 of 4 - 15
0.3 × 0.2 + 0.4 × 0.3 + ? = 413.18
85% of 620 + ? % of 1082 = 4855
30% of 180 + 248 ÷ ? - √256 = 102
36% of 540 – (45% of 7300) ÷ 75 =?
45% of 360 - 160 + ? = √324
(8.6 × 8.6 + 4.8 × 4.8 + 17.2 × 4.8) ÷ (8.62 – 4.82 ) = ? ÷ 19