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分数乘除法简便运算100题（有答案）
(1)(9+27)X3x9
12
⑶6x(7-3)
(70)
(72)
(74)
(76)
105
11
(71)8X58+-
>41+
4
x—
7
/41、
(5+1)
23
(78)(亦+右)x
15X11
(79)
4 5(73)
5 6
(80)46X44
45
(81)
(82)7x2!x$
(84)36x
3
5(75)
1
(77)1
x153—
1310
x5rgx-90)】
3714
39
2006
2008X007
(83)
9 1394
10 x乃+10x17
(85)
111113
—x—
131333
(86)—X101-—
2525
(87)
/CC、5
3
5
1
9
(88)9X
4
+9X
4
(89)17X16
(90)2006十2007
2008
(91)
44x
37
(92)2004X
45
67
2003
(93)73—X1
158
(94)166
20
3CL
26
3
X25+
X—
4
4
13
1X39+
㈣4
4
/c2
3、
,1
17
(96)1X
(22-
3)
+15十
17
3
4
12
21
(97)2000-20002000
2001
19931994-1
(98)199319921994
(99)33X252+
555
2255
(100)(9—+7)+(—+—)
7979
分数乘除法简便运算
100题答案:
(1)
+27)x3
X9=31
3、6门
-8)X165=0
(3)
2
(7-2
18
(5)
_5_
切X
11
36
(7)
6=1
(4)
5
5
5
1
5
6
X9+
9
X6
9
(6)
6
7
6
2
6
13
X7-
13
X2
13
3
3
4
3
3
3
⑻8
+8
X7+
8
X厂
4
(9)
37X35=335
35
(10)25X24
=5
6
25X
19
25
(25-1)
15
(11)15
10
21
3一1
4=7
X101-
7
17)=70
8
(14)8
8
X9=0
33
(14)X99+=60
55
48
(16)(-+9)X7X9=92
IW
(16)3彳X25=95
34
(17)36X35
5
(18)(6-
518
9)XIs=1
=(35+1)
34
35
4
3-
34
--
X
2-3
6
2
25
(2°)322X5
=5
(21)
(23)7
(25)
5
(25+5)
3
10
=27
(22)
12
(30+12)
5
35§5
7
=7^
7
7 47
8
8 78=2
7
(24)
99=5
205=12丄
2
(26)
5^.
912
912
12
3
(27)8-
(28)
6337
62