(1)72+28×108(2)36×64-64+64×65(3)24×125×7(4)25×(24+8)×125(5)402×[494÷(102-83)](6)908-8×(73-46)-数学

题目简介

(1)72+28×108(2)36×64-64+64×65(3)24×125×7(4)25×(24+8)×125(5)402×[494÷(102-83)](6)908-8×(73-46)-数学

题目详情

(1)72+28×108(2)36×64-64+64×65(3)24×125×7
(4)25×(24+8)×125(5)402×[494÷(102-83)](6)908-8×(73-46)
题型:解答题难度:中档来源:不详

答案

(1)72+28×108,
=72+3024,
=3096;

(2)36×64-64+64×65,
=(36-1+65)×64,
=100×64,
=6400,;

(3)24×125×7,
=3×8×125×7,
=(3×7)×(8×125),
=21×1000,
=21000;

(4)25×(24+8)×125,
=25×32×125,
=25×4×8×125,
=(25×4)×(8×125),
=100×1000,
=100000;

(5)402×[494÷(102-83)],
=402×[494÷19],
=402×26,
=10452;

(6)908-8×(73-46),
=908-8×27,
=908-216,
=692.

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