用简便方法计算.25×(8+40)3600÷25÷4125×48102×46484-365-35101×98-98.
(1)25×(8+40)
=25×8+40×25
=200+1000
=1200
(2)3600÷25÷4
=3600÷(25×4)
=3600÷100
=36
(3)125×48
=125×8×6
=1000×6
=6000
(4)102×46
=(100+2)×46
=100×26+2×26
=2600+52
=2652
(5)484-365-35
=484-(365+35)
=484-400
=84
(5)101×98-98
=(101-1)×98
=100×98
=9800
=25×8+40×25
=200+1000
=1200
(2)3600÷25÷4
=3600÷(25×4)
=3600÷100
=36
(3)125×48
=125×8×6
=1000×6
=6000
(4)102×46
=(100+2)×46
=100×26+2×26
=2600+52
=2652
(5)484-365-35
=484-(365+35)
=484-400
=84
(5)101×98-98
=(101-1)×98
=100×98
=9800
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