问题 计算题
用简便方法计算下面各题.
(1)8.35×101﹣8.35     (2)(3.4×0.8+9.2×3.4)÷34÷0.05
答案

(1)8.35×101﹣8.35

 =8.35×(101﹣1)

 =8.35×100

 =835(2)(3.4×0.8+9.2×3.4)÷34÷0.05

 =[3.4×(0.8+9.2)]÷34÷0.05

 =[3.4×10]÷34÷0.05

 =34÷34÷0.05

 =1÷0.05

 =20.

单项选择题
问答题