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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

题目详情
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+34×2342×37-42×17
28×32-28×17+28×8426×14+26×8+22×4132×31+18×24-7×132
92×49+108×51+92×51+49×108127×42-58×38+74×58-42×9111×13+22×8+33×7
123×36+246×17+369088×35-87×23-86×12121×6+120×5+119×3-118×14
11×22+22×33+33×44+44×55+55×66399÷7+91÷725÷4+25÷6+35÷4+35÷6
39÷7+62÷1478÷17+83÷34+202÷6875÷[9×6-3×(13+4)]
12×[34×2+(34+5)×8]+34×80.
▼优质解答
答案和解析
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