问题
解答题
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答案
(1)376+28+172+124,
=(376+124)+(28+172),
=500+200,
=700;
(2)164-83-17,
=164-(83+17),
=164-100,
=64;
(3)125×56,
=125×(8×7),
=125×8×7,
=1000×7,
=7000;
(4)43000÷8÷125,
=43000÷(8×125),
=43000÷1000,
=43;
(5)96×27+27×4,
=(96+4)×27,
=100×27,
=2700.