题目内容

计算下面各题,能简算的一定要简算.
700÷25125×32×227×45+55×27126÷[(105-98)×2].
(1)700÷25,
=700÷(5×5),
=700÷5÷5,
=140÷5,
=28;

(2)125×32×2,
=125×8×4×2,
=(125×8)×(4×2),
=1000×8,
=8000;

(3)27×45+55×27,
=27×(45+55),
=27×100,
=2700;

(4)126÷[(105-98)×2],
=126÷[7×2],
=126÷14,
=9.
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