问题 解答题
计算下面各题,能简算的要简算.
37+125+63+175
(630-125÷25)×6688-(534-112)
156×101-156125×884700÷25÷4
(750+120)×(35+65)97×99+97630-29×17+56
47×28+71×47+47.
答案

(1)37+125+63+175,

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

=100+300,

=400;

(2)(630-125÷25)×6,

=(630-5)×6,

=625×6,

=3750;

(3)688-(534-112),

=688-534+112,

=(688+112)-534,

=800-(500+34),

=800-500-34,

=300-34,

=266;

(4)156×101-156,

=156×(101-1),

=156×100,

=15600;

(5)125×88,

=125×8×11,

=1000×11,

=11000;

(6)4700÷25÷4,

=4700÷(25×4),

=4700÷100,

=47;

(7)(750+120)×(35+65),

=870×100,

=87000;

(8)97×99+97,

=97×(99+1),

=97×100,

=9700;

(9)630-29×17+56,

=630-493+56,

=193;

(10)47×28+71×47+47,

=47×(28+71+1),

=47×100,

=4700.

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