123494555 + × × - × ( - )63721256612×36
1851966 ×( - ) (13+ )× ×33612+66
13
5356 ×57 +
215 ÷4
5
83 ×(1883 -21 ×16 ) +34 ×57
13 +47 +23 +17 1
7
647 ×48 1
17
1623÷7+63÷73512034 41355447 9135517 +17 ×16 910 ×11-910 45 ×38 ×59 10117 ×34×7×217 5614723161365 ×215 57 ×14
×1
7 -2325 ×1617 +1625 ×
143598 (1269 +71 )×
23+
25 7183115515
× - ÷ ×错误!未指定书签。 + × 1546246644
32.6× +32.6×0.2
5
512463131 × + ÷6 465× × + 767×14
1257 -(17 +2 ) [1-(58+1
8
×42 45 ×47 ×54 -13 2.5÷4
4104105353 96(9.6×4)
2.08×(9.6÷2.4)÷4.8 780.25×4
5712×325×14 89÷58 115455÷7+55×7 ÷521×3 (81155)32.6×1.9
17.64÷4.9+6.73 3.412.5×3.2
45379+759 46414 +38 )]÷14 59 ×6+49 ÷1
6 -3.2×0.5+0.4 9.6×0.69+1.2×6.9+6.9 0.7871359÷2÷36 (13+1315)÷13 [1(12124)]3÷[(1.2+0.5)×5] 0.25(17-12)14 84818 ×180÷÷÷35×
587×
92.6×1.9÷
×1115(3 1) 128789 2.65×1.7+1.35×1.7 23.4÷887.8-2.1
+
0.75×18÷0.15 2.5×3.2×1.25 2842÷
14+74×3
413412 +-+ 5.2-11÷7-×3 4÷1+
37575736×
5336325×4÷4× ÷[(-)÷] 445436111111+++++ 2481632 7.6×÷[1.9-1.9×(1.9-1.9)] (5 -1.8)÷[(1.15+
132 )×1 ] 203
32 14 -6.46-3.54 4.2÷1.5-1.5×0.6 (0.92+ )
17257÷(4-2 )
9
53322 (4 -3 )÷( + ) 51.6÷[(3 -
64147541.25)× ] 5
19.98×37-199.8×1.9+1998×0.82 9999×7+1111×37
23111 (70+)× 8.89×36+8.89×232696863+8.89
1200511-1÷2-1÷3- 2007× 216×62006311 ( -
3241225
231÷231
2133×20% (+)×3+
15125503713114×[-(-)] 24×(-)÷ 4.85×0.17+0.48594164865×8.3
234511+×99+ 2-2.86×(6.25-6) 54.2- +
914714641.65÷5+1.29×0.2+
4.8-16
9
0.7÷[(56 -1
4 )×24] 1.4712.5÷25÷0.8÷4
78÷9×35÷3572 15-45÷49
21125×15+5÷154 [((415÷4-10) 7.28-(1.25+0.28) 999012.5×2.5
15 ÷[(2113 +5 )×13 ] 490.85)÷2.5 (1÷227+7÷1)÷5.1 +2.73×35
[1-(1315+10)]÷8 56(114+6) 12÷[2113×(6+3)] [(2153)÷56]
4.85-549 +5.15-9 (
115+217 )×17 ÷(2-1.02)+0.61×14 2000÷
23+(425135-3)×3 (15+49)×41695-4)×11]÷20 (112+4)÷×200.8+1×2008 0.8×4×23×0.6+0.6÷314 33.02-(148.4-1.6×53438+3.6÷4)×29×7.27
5×(453537+8-4) (6-4)÷
21353+3×4 11×
113 +1213 ×(52 -1
3 ) 5×
(341366417 ÷[( +)× ] - ×454777531521
( + ) 39
11466 10.2-(1.25 + 2.5)÷1.5 1 ÷( + 2.5× ) -
23 + 1
9
)
1116 ×40-916 ÷1
40
124)]×3
(2-3854×
15)÷52 18)×12.5 519+6×13 140 1920×17-35÷7 8.24537÷4 118(142.545) 6.75116+3)] 25336438 (11213918)×36 11928÷[10-(15+4)] 19263855511 845 34×(
117+113)×13 72÷[(76-23)×3] (831115÷[(12+20)×6] -2.4÷2.5÷0.4 2-1156+3.25-26
516871411 1233525 77[1-(
12-
×459+9÷
(5128+4-5)
-1516÷
12÷[23×
721151710 38524635 12 ÷ 54 ×
×( ÷ (
2 3
33575453 ×4÷ ×4 + ÷ ÷ 8881283847
10(413111-3)×(4-2) 17×[(1+1.5)÷1] 210334133.3[383(10.15)]
54211215733524×+÷ ÷9×÷ +(-5155485723525)× 334169114113[(-)×]÷ (+)÷(÷4-) (+)×54112024510154915-45÷49
111111111 ++++++++ 2612203042567290191256131 ×(+)+0.8 11÷〔×(+)〕 ÷ [ ×
202246561124
( + )] 55
832373485 [()] (1) ×
11941684515215[()÷]
536 ×(÷
56292455+ ) 51.6÷[(3 -1.25)× ] 556627213
)÷(4-2 ) (5 -1.8)÷[(1.15+ )259520
(0.92+2
×1 ] 3(
4177112 + )÷ + [1-( - )]× 3.64×[1÷54310243
1
(2 -2.09)] 10 (2
5573113817 +1 +2 +3. 375)× + ÷ + ( +0.2)× 1281220984938
÷(3—0.5) 71122240.24-20.875 25.4313 5735
25(1563310) (
215538535+3)÷6×11 8×〔9÷(6-4)〕 +120)×1] (13653+4)×24 0.5+6×(0.15+920) 45×3.8+5.2×80%+0.8 (34-23)×12÷0.1 111×3
+
3×5
+
15×7
+
…
…
+
1
17×19
111112233445+156
11×2×3 +12×3×4 +13×4×5 +……+1
48×49×50
二、解方程。
28139 X×(1-4 )=3.6 -415 X=10 34 ×(X-13 )=0 5X-3×1077 =5 513
339315÷[(
12+
1
19×21
12
-23 X= 119 5×(X- )=2
34321421
155123χ×(1+ )=250 χ- χ=0.3 χ
4+14 χ=19
5
χ×(1-114 -5 )=550 10X=
1120 X×133×5=4 Xχ=9.5
3.2×4+50x=112.8 0.3x2.4x=7
5×1.3-2x=5.5 5x1.2)=2.1
3.2×4+50x=112.8 0.3x2.4x=7
5×1.3-2x=5.5 0.8х=41.6
34χ+516χ-6=3 11.3=9.9
4×(x-0.8)=8 2=18
x-0.15x=8.5 0.81
3
x=15 16x-6.4x=36 5×X=825 33×315=18×4 -0.8×60=72 5.9x-2+1.8=3.6 7-0.8×60=725.9 x×(7.2+х)=7.92 6.2-23=35 414 ÷x=2
3
(6+3x)×(x-0.4)=8 x15x310 7÷
113χ+
6-
(x--х--7×
÷
1
2
x +
x-35 x
1=3 5 1-
33 =54
xx3.9 7615x417
8
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