1. (2023六上·中江月考) 计算下面各题，能简算的要简算。                                                                                

⑴	⑵	⑶
⑷4.8+0.36+5.2+0.64	⑸2.5×1.25×32	⑹8.59×[40÷（3.49﹣3.09）]