试题:
怎样简便就怎样计算
4620+(401-438÷73)
36×7÷36×71300÷25÷4
32×(25×l25)32+155+68+145201×16.

答案:

我来补答
(1)4620+(401-438÷73),
=4620+(401-6),
=4620+401-6,
=4600+20+(400+1)-6,
=4600+400+(20+1-6),
=5000+15,
=5015;

(2)36×7÷36×7,
=36÷36×7×7,
=1×7×7,
=49;

(3)1300÷25÷4,
=1300÷(25×4),
=1300÷100,
=13;

(4)32×(25×l25),
=32×25×125,
=8×4×25×125,
=4×25×(8×125),
=100×1000,
=100000;

(5)32+155+68+145,
=(32+68)+(155+145),
=100+300,
=400;

(6)201×16,
=(200+1)×16,
=200×16+16,
=3200+16,
=3216.
 
 
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