问题 解答题
计算下面各题,能简算的要简算.

75+360÷20+48
125×39×8×237×28+28×63
9.26-1.36-0.26-3.6458×99+585.76-(3.76+1.8)
答案

(1)75+360÷20+48,

=75+18+48,

=93+48,

=141;

(2)125×39×8×2,

=(125×8)×(39×2),

=1000×78,

=78000;

(3)37×28+28×63,

=(37+63)×28,

=100×28,

=2800;

(4)9.26-1.36-0.26-3.64,

=(9.26-0.26)-(1.36+3.64),

=9-5,

=4;

(5)58×99+58,

=58×(99+1),

=58×100,

=5800;

(6)5.76-(3.76+1.8),

=5.76-3.76-1.8,

=2-1.8,

=0.2.

单项选择题
单项选择题