问题 解答题
怎样简便就怎样计算
4620+(401-438÷73)
168-52-481300÷25÷437+125+63+175
28×37+73×37-37(300-1456÷26)×328×(29×l25)99×l0l.
答案

(1)4620+(401-438÷73),

=4620+(401-6),

=4620+395,

=5015;

(2)168-52-48,

=168-(52+48),

=168-100,

=68;

(3)1300÷25÷4,

=1300÷(25×4),

=1300÷100,

=13;

(4)37+125+63+175,

=(37+63)+(125+175),

=100+300,

=400;

(5)28×37+73×37-37,

=37×(28+73-1),

=37×100,

=3700;

(6)(300-1456÷26)×32,

=(300-56)×32,

=244×32,

=7808;

(7)8×(29×l25),

=(8×125)×29,

=1000×29,

=29000;

(8)99×l0l,

=99×(100+1),

=99×100+99×1,

=9900+99,

=9999.

单项选择题
单项选择题