计算:91+85+87+106+115+94+113+101-查字典问答网
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来自冯站峰的问题

  计算:91+85+87+106+115+94+113+101123+119×2+121×3+120×4(1231+2312+3123)÷6(12+23+34+45+56+61)÷734×77+34×2342×37-42×1728×32-28×17+28×8426×14+26×8+22×4132×31+18×24-7×13292×49+108×51+92×51+49×108127×42-58×38+74×58-42×9

  计算:

  91+85+87+106+115+94+113+101

  123+119×2+121×3+120×4

  (1231+2312+3123)÷6(12+23+34+45+56+61)÷734×77+34×2342×37-42×1728×32-28×17+28×8426×14+26×8+22×4132×31+18×24-7×13292×49+108×51+92×51+49×108127×42-58×38+74×58-42×9111×13+22×8+33×7123×36+246×17+369088×35-87×23-86×12121×6+120×5+119×3-118×1411×22+22×33+33×44+44×55+55×66399÷7+91÷725÷4+25÷6+35÷4+35÷639÷7+62÷1478÷17+83÷34+202÷6875÷[9×6-3×(13+4)]12×[34×2+(34+5)×8]+34×80.

1回答
2020-05-24 23:11
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  ①1+85+87+106+115+94+113+101

  =(113+87)+(106+94)+(85+115)+(91+101)

  =200×3+192

  =792

  ②123+119×2+121×3+120×4

  =120×10+4

  =1200+4

  =1204

  ③(1231+2312+3123)÷6

  =6666÷6

  =1111

  ④(12+23+34+45+56+61)÷7

  =231÷7

  =33

  ⑤34×77+34×23

  =34×(77+23)

  =34×100

  =3400

  (6)42×37-42×17

  =42×(37-17)

  =42×20

  =840

  (7)28×32-28×17+28×84

  =28×(32-17+84)

  =28×99

  =28×(100-1)

  =28×100-28

  =2800-28

  =2772

  (8)26×14+26×8+22×4

  =26×(14+8)+22×4

  =22×(26+4)

  =660

  (9)132×31+18×24-7×132

  =132×(31-7)+18×24

  =24×(132+18)

  =24×150

  =3600

  (10)92×49+108×51+92×51+49×108

  =108×(51+49)+92×(49+51)

  =100×(108+92)

  =20000

  (11)127×42-58×38+74×58-42×91

  =(127-91)×42+58×(74-38)

  =36×42+58×36

  =36×(42+58)

  =3600

  (12)11×13+22×8+33×7

  =11×13+11×16+11×21

  =11×(13+16+21)

  =11×50

  =550

  (13)123×36+246×17+3690

  =123×(36+34)+3690

  =8610+3690

  =12200

  (14)88×35-87×23-86×12

  =86×(35-23-12)+2×35-23

  =70-23

  =47

  (15)121×6+120×5+119×3-118×14

  =118×(6+5+3-14)+3×6+2×5+3

  =31

  (16)11×22+22×33+33×44+44×55+55×66

  =22×(11+33+66+110+165)

  =22×385

  =8470

  (17)399÷7+91÷7

  =(399+91)÷7

  =490÷7

  =70

  (18)25÷4+25÷6+35÷4+35÷6

  =(25+35)÷6+(25+35)÷4

  =10+15

  =25

  (19)39÷7+62÷14

  =78÷14+62÷14

  =(78+62)÷14

  =140÷14

  =10

  (20)78÷17+83÷34+202÷68

  =312÷68+166÷68+202÷68

  =(312+166+202)÷68

  =680÷68

  =10

  (21)75÷[9×6-3×(13+4)]

  =75÷[54-51]

  =75÷3

  =25

  (22)12×[34×2+(34+5)×8]+34×80

  =12×[68+39×8]+2720

  =12×380+2720

  =4560+2720

  =7280

2020-05-24 23:13:29

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