问题 解答题
计算下面各题(能简算的要简算)
1.72+6.03+8.97+2.2825×48×12572.27-7.44-2.56
(64-224÷14)×1285×101787×101-787.
答案

(1)1.72+6.03+8.97+2.28,

=(1.72+2.28)+(6.03+8.97),

=4+15,

=19;

(2)25×48×125,

=(25×6)×(8×125),

=150×1000,

=150000;

(3)72.27-7.44-2.56,

=72.27-(7.44+2.56),

=72.27-10,

=62.27;

(4)(64-224÷14)×12,

=(64-16)×12,

=48×12,

=576;

(5)85×101,

=85×100+85×1,

=8500+85,

=8585;

(6)787×101-787,

=787×(101-1),

=787×100,

=78700.

完形填空
问答题 简答题