①5.76×6+2..24×6-3×2②（2/1+3/1-5/1）×5+3.5×2-0.2×5③5.2×6÷6/1+1.8④3.3×2.2+3.7×2.2×10⑤9.7+6.5-1.2+6÷3⑥3.5×10-3.6×5-6×2.5⑦3.69+6.16-0.12⑧63.7+5.2-24.6×1.5⑨8.2-6.6+4.5×10-15.33.5+...