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(1)432×99﹣568(2)14÷4﹣(3+5÷9)(3)51×68×78÷(17×34×13)(4)1×(2﹣0.75)+15÷

题目详情
(1)432×99﹣568 (2)14 ÷4﹣(3+5÷9)
(3)51×68×78÷(17×34×13) (4)1 ×(2 ﹣0.75)+15 ÷
(1)432×99﹣568 (2)14 ÷4﹣(3+5÷9) (3)51×68×78÷(17×34×13) (4)1 ×(2 ﹣0.75)+15 ÷ (1)432×99﹣568 (2)14 ÷4﹣(3+5÷9) (1)432×99﹣568 (2)14 ÷4﹣(3+5÷9) (3)51×68×78÷(17×34×13) (4)1 ×(2 ﹣0.75)+15 ÷ (3)51×68×78÷(17×34×13) (4)1 ×(2 ﹣0.75)+15 ÷
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答案和解析

(1)432×99﹣568
  =432×(100﹣1)﹣568
  =432×100﹣432﹣568
  =43200﹣(432+568)
  =43200﹣1000
  =42200

(2)14 ÷4﹣(3+5÷9)
  = ﹣(3+
  =
  =0
(3)51×68×78÷(17×34×13)
  =51×68×78÷17÷34÷13
  =(51÷17)×(68÷34)×(78÷13)
  =3×2×6
  =36
 
 
 
 
 
(4)1 ×(2 ﹣0.75)+15 ÷
  = )+
  = × +
  =( + )×
  =
  =

(1)432×99﹣568
  =432×(100﹣1)﹣568
  =432×100﹣432﹣568
  =43200﹣(432+568)
  =43200﹣1000
  =42200

(2)14 ÷4﹣(3+5÷9)
  = ﹣(3+
  =
  =0 (3)51×68×78÷(17×34×13)
  =51×68×78÷17÷34÷13
  =(51÷17)×(68÷34)×(78÷13)
  =3×2×6
  =36
 
 
 
 
  (4)1 ×(2 ﹣0.75)+15 ÷
  = )+
  = × +
  =( + )×
  =
  =

(1)432×99﹣568
  =432×(100﹣1)﹣568
  =432×100﹣432﹣568
  =43200﹣(432+568)
  =43200﹣1000
  =42200

(2)14 ÷4﹣(3+5÷9)
  = ﹣(3+
  =
  =0

(1)432×99﹣568
  =432×(100﹣1)﹣568
  =432×100﹣432﹣568
  =43200﹣(432+568)
  =43200﹣1000
  =42200

(1)432×99﹣568
  =432×(100﹣1)﹣568
  =432×100﹣432﹣568
  =43200﹣(432+568)
  =43200﹣1000
  =42200

(1)432×99﹣568
  =432×(100﹣1)﹣568
  =432×100﹣432﹣568
  =43200﹣(432+568)
  =43200﹣1000
  =42200 (2)14 ÷4﹣(3+5÷9)
  = ﹣(3+
  =
  =0 (2)14 ÷4﹣(3+5÷9)
  = ﹣(3+
  =
  =0 (3)51×68×78÷(17×34×13)
  =51×68×78÷17÷34÷13
  =(51÷17)×(68÷34)×(78÷13)
  =3×2×6
  =36
 
 
 
 
  (4)1 ×(2 ﹣0.75)+15 ÷
  = )+
  = × +
  =( + )×
  =
  = (3)51×68×78÷(17×34×13)
  =51×68×78÷17÷34÷13
  =(51÷17)×(68÷34)×(78÷13)
  =3×2×6
  =36
 
 
 
 
  (3)51×68×78÷(17×34×13)
  =51×68×78÷17÷34÷13
  =(51÷17)×(68÷34)×(78÷13)
  =3×2×6
  =36
 
 
 
 
  (4)1 ×(2 ﹣0.75)+15 ÷
  = )+
  = × +
  =( + )×
  =
  = (4)1 ×(2 ﹣0.75)+15 ÷
  = )+
  = × +
  =( + )×
  =
  =