怎样简便就怎样算. 569+68+132+31  ...
怎样简便就怎样算.569+68+132+31138×25×42300-165-3543000÷8÷12596×27+27×4125×56....
怎样简便就怎样算. 569+68+132+31 138×25×4 2300-165-35 43000÷8÷125 96×27+27×4 125×56.
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(1)569+68+132+31
=(569+31)+(68+132)
=600+200
=800;
(2)138×25×4
=138×(25×4)
=138×100
=13800;
(3)2300-165-35
=2300-(165+35)
=2300-200
=2100;
(4)43000÷8÷125
=43000÷(8×125)
=43000÷1000
=43;
(5)96×27+27×4
=(96+4)×27
=100×27
=2700;
(6)125×56
=125×(60-4)
=125×60-125×4
=7500-500
=7000.
=(569+31)+(68+132)
=600+200
=800;
(2)138×25×4
=138×(25×4)
=138×100
=13800;
(3)2300-165-35
=2300-(165+35)
=2300-200
=2100;
(4)43000÷8÷125
=43000÷(8×125)
=43000÷1000
=43;
(5)96×27+27×4
=(96+4)×27
=100×27
=2700;
(6)125×56
=125×(60-4)
=125×60-125×4
=7500-500
=7000.
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