问题 解答题
简算.
7.54-0.68-1.323.27+6.3+2.73+4.7(125+7)×8;728×79十728.
答案

(1)7.54-0.68-1.32,

=7.54-(0.68+1.32),

=7.54-2,

=5.54;

(2)3.27+6.3+2.73+4.7,

=(3.27+2.73)+(6.3+4.7),

=6+11,

=17;

(3)(125+7)×8,

=125×8+7×8,

=1000+56,

=1056;

(4)728×79十728,

=728×79+728×1,

=728×(79+1),

=728×80,

=58240.

单项选择题
单项选择题