• 1. (2020五上·尖草坪期末) 下面各题能简便的就用简便计算

  ①3.78×99+3.78

  ②47.3÷8÷0.125

  ③4.05÷0.81+2.4

  ④7.46+3.12+6.88-1.46

  ⑤1.76-[（0.74-0.26）÷0.8]