A-A+
计算:(1)24÷(12-13+14-16)(2)[1.25÷18-(3115+2.45)]
问题详情
计算:
(1)24÷(
(2)[1.25÷
(3)2006÷2006
(4)1÷(
(5)
参考答案
(1)24÷(12-13+14-16)
=24÷14,
=96;
(2)[1.25÷18-(3115+2.45)]×0.48
=[1.25÷0.125-(3115+2920)]×0.48,
=[10-53160]×1225,
=26960×1225,
=269125;
(3)2006÷200620062007+1÷2008
=2006÷2007×2006+20062007+12008,
=2006×2007(2007+1)×2006+12008,
=2006×20072008×2006+12008,
=20072008+12008,
=1;
(4)1÷(12×3+13×4+14×5+15×6)
=1÷(12-13+13-14+14-15+15-16),
=1÷13,
=3;
(5)(814-0.75)÷312(5-425)÷10+(3.25-178)×135(2-138)÷318
=(8.25-0.75)÷3.5(5-4.4)÷10+(3.25-1.875)×1.6(2-1.375)÷3.125,
=7.5÷3.50.6÷10+1.625×1.60.625÷3.125,
=157÷320+2.60.2,
=1007+13,
=1427+13,
=2127.
考点: