问题 解答题
简算.
146+155+254+45
1762-73-127
101×285600÷35
73×68+32×73142×59-42×59
999×999+999125×32×25.
答案

(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.

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