文档介绍：x ( 8+10)
=x 8+x 10
=10+=
9123- (123+)
x + x
=x ( +
=x 3=
9999x1001
=9999x (1000+1)
=9999x1000+9999 x1
=()) +X 347+45X2-4160 + 52
(6+ + ) X 87 (58+37) + ( 64-9X 5)
[()X + (X +) +
+ [X () +] 12X6+ () -6
X6+ (+) + (X +) + x () +x
1)23+(-73) (2)(-84)+(-49)
⑶7+
(4)+
⑸(-773)+(-76)
(6)9/4+(-32)
(7)++54
(8)+(+54)+
(9)(-17/4)+(-10/3)+(+13/3)+(11/3)
(10)+(++++(++(+
(11)(+-(+17/7) (12)(-2)-(+2/3) (13)|-+|
(14)|(-5/4)-(-34)|-|1-5 /4-|-3/4|) (15)(-2/199)*(-7/6-3/2+83) (16)4a)*(-3b)*(5c)*1 /6 X 49/9 - 4/3 2. 89 X 1夕36 + 1/27 3. 12X 36 - 2/9X3 4. 8X 5/4 + 1/4 5. 6+ 3/8 - 38+6 6. 47 X 39 + 37 X 39 7. 32 - ( 32 + 4/5 ) 8. 78 + ( 1/8 + 1/9 ) 9. 9 X 36 + 36 10. 34 X 8/9 - 1/3
x + X = (9— 5 X )X = X - X =28+ X 5/49 + 314
6X( 1/2 + 2/3 )
8 X 4/5 + 8 X 11/5
31X5/6-36
9/7 - ( 2/7 - 10/21 )
39X18-14X2/7
4/5X25/16 + 2/3X3/4
14X8/7-36X12/15
17/32 - 3/4 X 9/24
5/7 X 3/25 + 3/7
3/14 XX 2/3 + 1/6
1/5 X 2/3 + 夕6
9/22 + 1/11 + 1/2
5/3 X 11/5 + 4/3
45 X 2/3 + 1/3 X 15
719 + 12/19 X 5/6
1/4 + 34 + 2/3
87 X 21/16 + 1/2
101 X 1/5 - 1/5 X 21
+ 160 + 40 (58+370) + ( 64-45)
+ 18+35
+45X2-4160 + 52
34 (58+37) + ( 64-9 X 5) + (64-45)
-5X 6+42 420+580-64 X 21 + 28
+ (9+31 X 11)(136+64) X ( 65-345 + 23)
+ 14X ( 14+208+26)
(284+16) X ( 512-8208 + 18) X4+ 18+35
(58+37) + ( 64-9 X 5)
+ X
44. (X +) +(2) X ( +) +
X =
()=X +X
()+X
(6+ + ) x
+5