简算.146+155+254+45 ...

简算.146+155+254+45 1762-73-127 101×28 5600÷35 73×68+32×73 142×59-42×59 999×999+999 125×32×25.
2026年09月28日 08:07
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(1)146+155+254+45
=(146+254)+(155+45)
=400+200
=600;

(2)1762-73-127
=1762-(73+127)
=1762-200
=1562;

(3)101×28
=100×28+1×28
=2800+28
=2828;

(4)5600÷35    
=5600÷7÷5
=800÷5
=160;
          
(5)73×68+32×73
=73×(68+32)
=73×100
=7300;

(6)142×59-42×59
=59×(142-42)
=59×100
=5900;

(7)999×999+999            
=999×(999+1)
=999×1000
=999000;

(8)125×32×25
=(125×8)×(4×25)
=1000×100
=100000.