脱式计算（能简便的要用简便方法计算）

①56.55÷6.5÷2.9

②12.5×0.84×16

③（9.6－0.69×2）÷4.11

④5.2×10.1

⑤2.5×3.7+6.3×2.5

⑥1.25×32×2.5