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(1)8×39×125(2)78+143+122+157(3)3600-128÷8×25(4)95×23+6×23-23(5)986÷34×62-1200(6)984÷[(457-273)÷23].
题目详情
(1)8×39×125 (2)78+143+122+157 (3)3600-128÷8×25 (4)95×23+6×23-23 (5)986÷34×62-1200 (6)984÷[(457-273)÷23]. |
(2)78+143+122+157
(3)3600-128÷8×25
(4)95×23+6×23-23
(5)986÷34×62-1200
(6)984÷[(457-273)÷23].
(2)78+143+122+157
(3)3600-128÷8×25
(4)95×23+6×23-23
(5)986÷34×62-1200
(6)984÷[(457-273)÷23].
(2)78+143+122+157
(3)3600-128÷8×25
(4)95×23+6×23-23
(5)986÷34×62-1200
(6)984÷[(457-273)÷23].
(2)78+143+122+157
(3)3600-128÷8×25
(4)95×23+6×23-23
(5)986÷34×62-1200
(6)984÷[(457-273)÷23].
▼优质解答
答案和解析
(1)8×39×125
=(8×125)×39
=1000×39
=39000;
(2)78+143+122+157
=(78+122)+(143+157)
=200+300
=500
(3)3600-128÷8×25
=3600-16×25
=3600-4×(4×25)
=3600-4×100
=3600-400
=3200
(4)95×23+6×23-23
=(95+6-1)×23
=100×23
=2300;
(5)986÷34×62-1200
=29×62-1200
=1798-1200
=598;
(6)984÷[(457-273)÷23]
=984÷[184÷23]
=984÷8,
=123. (1)8×39×125
=(8×125)×39
=1000×39
=39000;
(2)78+143+122+157
=(78+122)+(143+157)
=200+300
=500
(3)3600-128÷8×25
=3600-16×25
=3600-4×(4×25)
=3600-4×100
=3600-400
=3200
(4)95×23+6×23-23
=(95+6-1)×23
=100×23
=2300;
(5)986÷34×62-1200
=29×62-1200
=1798-1200
=598;
(6)984÷[(457-273)÷23]
=984÷[184÷23]
=984÷8,
=123. (1)8×39×125
=(8×125)×39
=1000×39
=39000;
(2)78+143+122+157
=(78+122)+(143+157)
=200+300
=500
(3)3600-128÷8×25
=3600-16×25
=3600-4×(4×25)
=3600-4×100
=3600-400
=3200
(4)95×23+6×23-23
=(95+6-1)×23
=100×23
=2300;
(5)986÷34×62-1200
=29×62-1200
=1798-1200
=598;
(6)984÷[(457-273)÷23]
=984÷[184÷23]
=984÷8,
=123. (1)8×39×125
=(8×125)×39
=1000×39
=39000;
(2)78+143+122+157
=(78+122)+(143+157)
=200+300
=500
(3)3600-128÷8×25
=3600-16×25
=3600-4×(4×25)
=3600-4×100
=3600-400
=3200
(4)95×23+6×23-23
=(95+6-1)×23
=100×23
=2300;
(5)986÷34×62-1200
=29×62-1200
=1798-1200
=598;
(6)984÷[(457-273)÷23]
=984÷[184÷23]
=984÷8,
=123.
(1)8×39×125 =(8×125)×39 =1000×39 =39000; (2)78+143+122+157 =(78+122)+(143+157) =200+300 =500 (3)3600-128÷8×25 =3600-16×25 =3600-4×(4×25) =3600-4×100 =3600-400 =3200 (4)95×23+6×23-23 =(95+6-1)×23 =100×23 =2300; (5)986÷34×62-1200 =29×62-1200 =1798-1200 =598; (6)984÷[(457-273)÷23] =984÷[184÷23] =984÷8, =123. |
=(8×125)×39
=1000×39
=39000;
(2)78+143+122+157
=(78+122)+(143+157)
=200+300
=500
(3)3600-128÷8×25
=3600-16×25
=3600-4×(4×25)
=3600-4×100
=3600-400
=3200
(4)95×23+6×23-23
=(95+6-1)×23
=100×23
=2300;
(5)986÷34×62-1200
=29×62-1200
=1798-1200
=598;
(6)984÷[(457-273)÷23]
=984÷[184÷23]
=984÷8,
=123.
=(8×125)×39
=1000×39
=39000;
(2)78+143+122+157
=(78+122)+(143+157)
=200+300
=500
(3)3600-128÷8×25
=3600-16×25
=3600-4×(4×25)
=3600-4×100
=3600-400
=3200
(4)95×23+6×23-23
=(95+6-1)×23
=100×23
=2300;
(5)986÷34×62-1200
=29×62-1200
=1798-1200
=598;
(6)984÷[(457-273)÷23]
=984÷[184÷23]
=984÷8,
=123.
=(8×125)×39
=1000×39
=39000;
(2)78+143+122+157
=(78+122)+(143+157)
=200+300
=500
(3)3600-128÷8×25
=3600-16×25
=3600-4×(4×25)
=3600-4×100
=3600-400
=3200
(4)95×23+6×23-23
=(95+6-1)×23
=100×23
=2300;
(5)986÷34×62-1200
=29×62-1200
=1798-1200
=598;
(6)984÷[(457-273)÷23]
=984÷[184÷23]
=984÷8,
=123.
=(8×125)×39
=1000×39
=39000;
(2)78+143+122+157
=(78+122)+(143+157)
=200+300
=500
(3)3600-128÷8×25
=3600-16×25
=3600-4×(4×25)
=3600-4×100
=3600-400
=3200
(4)95×23+6×23-23
=(95+6-1)×23
=100×23
=2300;
(5)986÷34×62-1200
=29×62-1200
=1798-1200
=598;
(6)984÷[(457-273)÷23]
=984÷[184÷23]
=984÷8,
=123.
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