9265 -( + ÷)
78375×-× 94156#
6325÷[(-)÷] 54362319(3 -4 ×3 )÷ 8 711―9 +―9
3-
75- 12125355×+× 788722×7+×5 -3
37+-647 (2-
344×5)÷(112+415)20÷[3 ×(11
502 -3 )] (2+2
3 15 )×45 (1-)÷+
89×3754-15×6 3-712-512 57×38+58×57 8551015×16+27÷9 [
3-
19×112 + 56 -( + ÷
57) -337+-647
(2-
34×45)÷(1412+15)20÷[3(11
50 ×2 -3 )] (22
3 +15 )×45 (1-)÷+
815×516+527÷109 817÷23+123×917 429×[1-(334-8)] -+-
47+15-37+45 -11÷7-17×3
34×4÷4×34 63255÷[(4-3)÷6] (2-3193 4 ×3 )÷ 8 , ―7119 +―9
23×7+23×5 (116-12)×24-45) (57×47+447)÷7
429×[1-(34-38)] -+-
47+15-37+45 -11÷7-17×3
34×4÷4×34 、
33(16-112)×24-45) (547×7+47)÷47
1215÷[(3+5)×113] 78 ÷5+78 ÷2 105×13-1890÷18
13÷[(23+15)×113] (
778 ÷5+8 ÷2 ×-÷
920 ÷[12 ×(25 +45 )] (3218 + 3 )÷24
119 × — ×29 37 ÷ 74711 + 7 ÷ 11 12272 ÷ 5 - 3 ×10
1897925×16+25×16+916
}
125÷[(3+15)×113] 78 ÷5+78 ÷2 105×13-1890÷18
13÷[(23+15)×113]
78 ÷5+78 ÷2 ×-÷
9120 ÷[2 ×(25 +45 )] (3218 + 3 )÷24
119 × — ×29 37 ÷ 711 + 47 ÷ 711 &
1 2 ÷ 25 - 273 ×10
1825×916+79925×16+16 184x2x6
+ 14 = ×3=52 11=12÷Ⅹ6 310Ⅹ÷123=3 ×5—334Ⅹ=5 1÷Ⅹ=91
3 Ⅹ÷3
14= 、
Ⅹ=5
6×3 Ⅹ-1
4Ⅹ= 419
5×(Ⅹ-10)=
(519
2-4)Ⅹ=10
184x2x6
+ 14 = ×3=52 <
11=1
2÷Ⅹ6 3210Ⅹ÷13=3 ×5—334Ⅹ=5 1÷Ⅹ=91
3 Ⅹ÷3
14= Ⅹ=5
6×3 Ⅹ-1
4Ⅹ= 419
5×(Ⅹ-10)= (514)Ⅹ=9
2-10 322
5-35Ⅹ=2 《 Ⅹ÷256=17 710÷Ⅹ=213 (-21
3)Ⅹ=
184x2x6 + 14 = ×3=52 1112÷Ⅹ=6 5Ⅹ=185 310Ⅹ÷123=3 ×5—3Ⅹ=345 /
Ⅹ÷3
14=
322
5-35Ⅹ=2 Ⅹ÷256=17 7110÷Ⅹ=23 (-21
3)Ⅹ=
184x2x6
+ 14 = , ×3=52 1112÷Ⅹ=6 5=18Ⅹ5 3210Ⅹ÷13=3 ×5—3Ⅹ=345 Ⅹ÷3
14= 2=8
2
3 ( X - = 7 ×5- 334 X = 5 Ⅹ-1
4Ⅹ= 《
4195×(Ⅹ-10)=
(519
2-4)Ⅹ=10 (-21
3)Ⅹ=
X×
35=20×14 50% X + 45 X = 25% X + 15%X = 45
X - 15%X = 68
2=8
2
3 ( X - = 7 33×5- 4 X = 5 1
Ⅹ-4Ⅹ= 19
45×(Ⅹ-10)= 19
(52-4)Ⅹ=10 1
(-23)Ⅹ=
31=20× 54450% X + X =
54 25% X + 15%X =
5X×
X - 15%X = 68
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