问题 解答题

下面各题能简算的要用简便计算.

1.36+4.85+2.64+6.15 98.5÷2.5÷4 5.4÷[2.5×(3.7-2.9)]

0.8×(4-3.68)÷0.01 83.7-12.83-0.17 5.96+13×(3.2-3.12)

答案

(1)1.36+4.85+2.64+6.15,

=(1.36+2.64)+(4.85+6.15),

=4+11,

=15;

(2)98.5÷2.5÷4,

=98.5÷(2.5×4),

=98.5÷10,

=9.85;

(3)5.4÷[2.5×(3.7-2.9)],

=5.4÷[2.5×0.8],

=5.4÷2,

=2.7;

(4)0.8×(4-3.68)÷0.01,

=0.8×0.32÷0.01,

=0.256÷0.01,

=25.6;

(5)83.7-12.83-0.17,

=83.7-(12.83+0.17),

=83.7-13,

=70.7;

(6)5.96+13×(3.2-3.12),

=5.96+13×0.08,

=5.96+1.04,

=7.

单项选择题 A1型题
单项选择题 A1/A2型题