• 1. (2019五上·惠安期中) 计算下面各题，能简算的要简算

  ①3.4×12.5×0.08

  ②42.6×0.8﹣21.5

  ③6.8×2.7+2.7×3.2

  ④1.29÷6.45×26

  ⑤36.7÷1.25÷8

  ⑥3.6+6.4×0.35