题目内容

计算下面各题,能简算的要简算.

75+360÷20+48
125×39×8×237×28+28×63
9.26-1.36-0.26-3.6458×99+585.76-(3.76+1.8)

(1)75+360÷20+48,
=75+18+48,
=93+48,
=141;

(2)125×39×8×2,
=(125×8)×(39×2),
=1000×78,
=78000;

(3)37×28+28×63,
=(37+63)×28,
=100×28,
=2800;

(4)9.26-1.36-0.26-3.64,
=(9.26-0.26)-(1.36+3.64),
=9-5,
=4;

(5)58×99+58,
=58×(99+1),
=58×100,
=5800;

(6)5.76-(3.76+1.8),
=5.76-3.76-1.8,
=2-1.8,
=0.2.
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