五年级分数混合运算题
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五年级下学期分数混合运算练习题
一、分数脱式计算题(能简算的要简算,计算结果必须是最简分数)
(1)328
554÷⨯ (2)223751415÷÷ (3)2112732⨯÷ (4)154
9845⨯÷
(5)16
134387÷⎪⎭⎫ ⎝⎛+ (6)⎪⎭⎫ ⎝⎛-÷3121154 (7)5324592181⨯+÷ (8)21
1575427⨯÷⎪⎭⎫ ⎝⎛-
(9)76657668÷-÷ (10)24
1
652143÷⎪⎭⎫ ⎝⎛-+ (11)271094102795÷
+⨯ (12)94
954343÷⎪⎭
⎫ ⎝⎛⨯- (13)32831495÷⨯ (14)724526613⨯÷ (15)631631⨯÷⨯ (16)53815387÷+÷ (17)7
2
537553÷+÷
(18)56213256⨯-÷ (19)5435432÷⨯- (20)3
24312111117⨯⎪⎭⎫ ⎝⎛-⨯
(21)5647311⨯⎪⎭⎫ ⎝
⎛⨯- (22)6532132⨯⎪⎭⎫ ⎝⎛-÷ (23)7
5
315265⨯⎥⎦⎤⎢⎣⎡⎪⎭⎫ ⎝⎛+-
(24)5214352÷-⨯ (25)89315143⨯⎪⎭⎫ ⎝⎛+- (26)8
9131241÷⨯
(27)494944÷-÷ (28)167839532÷
⎪⎭
⎫
⎝⎛⨯- (29)⎪⎭⎫ ⎝⎛+÷7253121 (30)⎪⎭⎫ ⎝⎛+÷36127191 (31)311383÷⎪⎭
⎫
⎝⎛+ (32)1177411773÷+÷
(33)9
1631451
÷⎪⎭⎫ ⎝⎛- (34)1744341741÷+⨯ (35)52753⨯
(36)433416385+⨯+ (37)16
13
16132413÷⎪⎭⎫ ⎝⎛+) (38)1811895181913-÷+⨯
(39)⎪⎭
⎫ ⎝⎛++⨯9161181144 (40)⎪⎭⎫ ⎝⎛-⨯⨯9217341 (41)⎪⎭⎫
⎝⎛+÷⎪⎭⎫ ⎝⎛-81614132
(42)76434378⨯+⨯ (43)3
1
738343⨯⎪⎭⎫ ⎝⎛++ (44)127658196⨯⨯⨯ (45)9119191918⨯+÷ (46)7
1
54751⨯+÷ (47)⎪⎭⎫ ⎝⎛--÷4121141
(48)⎪⎭
⎫
⎝⎛++⨯9161181144 (49)157211265⨯⨯ (50)1131155-÷
(51)9412774÷⨯ (52)25
9
4385⨯÷ (53)⎪⎭⎫ ⎝⎛÷÷136143561
(54)1693232167⨯+⨯ (55)81788178÷+⨯ (56)9
1
3798379237⨯-⨯+⨯ (57)10941185⨯⨯ (58)542153⨯⨯ (59)⎪⎭
⎫
⎝⎛-÷⎪⎭⎫ ⎝⎛+211211 (60)16
13
161385÷⎪⎭⎫ ⎝⎛+ (61)15412572⨯⨯ (62)41647257÷+÷
(63)24
1
813121÷⎪⎭⎫ ⎝⎛++ (64)6.0384-÷ (65)⎪⎭⎫ ⎝⎛--÷138135341
(66)5.951545.9⨯+⨯ (67)()⎥⎦
⎤
⎢⎣⎡-⨯÷25.125251 (68)374544⨯ (69)261527⨯
(70)8115173⨯ (71)9117164⨯ (72)21120122⨯ (73)415
3
2751⨯+⨯ (74)27433941⨯+⨯ (75)17653561⨯+⨯ (76)13
61851329513165⨯+⨯+⨯ (77)9117594171⨯+⨯ (78)12
176********⨯+⨯+⨯
二、解方程
(79)872141=+X (80)3112565-=÷X (81)4
1
10385=-X X
(82)5113254
=⎪⎭⎫ ⎝⎛+⨯X (83)31474=+X X (84)110
3
103=+
X
(85)525443=⨯⨯X (86)812143=-X (87)11
6
111052=÷⨯X (88)3114175=⨯⨯X (89)982153⨯=X (90)5
3
217=÷X (91)21614332+=+X X (92)103851=-X (93)61511=⎪⎭
⎫
⎝⎛+÷X (94)()81054
=-X (95)24658=÷X (96)7
42756=⨯-X
(97)8341÷=-X X (98)X X X X =⎪⎭⎫ ⎝⎛
-÷⎥⎦⎤⎢⎣
⎡⎪⎭⎫ ⎝⎛--20714153
(99)73118722431=⎪⎭
⎫
⎝⎛-⨯⎥⎦⎤⎢⎣⎡++⎪⎭⎫ ⎝⎛+X X (100)()425412=+⨯+X X
三.简便运算
(101)72+(41-72) (102)(61×83)×24 (103) 65×(52×7
1) (104)21×75+21×75 (105) 45×94-94×45 (106) 27×5
4+27÷5
(107)24×43×65 (108) 43÷81×95 (109) 2÷(4
3×98
)
233515515