问题 解答题
能简便计算的就简便计算:
7826-(826-1300)=87×99+87=125×88=54×102=
125×(4+8)=36×111+888×8=65×34+34×34+34=25×13×4=
答案

(1)7826-(826-1300),

=7826-826+1300,

=7000+1300,

=8300;

(2)87×99+87,

=87×(99+1),

=87×100,

=8700;

(3)125×88,

=125×(8×11),

=125×8×11,

=1000×11,

=11000;

(4)54×102,

=54×(100+2),

=54×100+54×2,

=5400+108,

=5508;

(5)125×(4+8),

=125×4+125×8,

=500+1000,

=1500;

(6)36×111+888×8,

=36×111+111×64,

=111×(36+64),

=111×100,

=11100;

(7)65×34+34×34+34,

=34×(65+34+1),

=34×100,

=3400;

(8)25×13×4,

=25×4×13,

=100×13,

=1300.

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