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计算下面各题,怎样简便怎样算.1253-27.44-12.561.96×99+1.967200÷4÷253.65÷10.1.

题目详情
计算下面各题,怎样简便怎样算.
1253-27.44-12.56                   
1.96×99+1.96
7200÷4÷25                         
3.65÷10.1.




▼优质解答
答案和解析
(1)1253-27.44-12.56 
=1253-(27.44+12.56)
=1253-40
=1213

(2)1.96×99+1.96
=1.96×(99+1)
=1.96×100
=196

(3)7200÷4÷25   
=7200÷(4×25)
=7200÷100
=72

(4)3.65÷10.1=
73
202
73
202
73202737373202202202