苏教版五年级下册数学·分数加减法计算题
茶道图片-dangrous
计算下面各题(能简便计算的要简便计算)
57 1 52114211947
(1) +
+ (2) - + (3) -( - )
(4) +( - )
696854153520540
77
(5) -( - ) (6) -( - )
(7)6.12+ +2.88+ (8) -( + )
61
87
1535
(9) -( + ) (10) + + +
(11) + + - (12) - -
1111891
88
11
291351 5
3 1 7 7 1 1
(13) +( + ) (14) - +
(15) - + - (16) + -
710943
(17)
(21)1+
(25)
(29)1-
375771772025
-
(22)+- (23)-- (24)0.85++1.15+
242727
412128877
5 5 1
633
733
1
11
- ( - ) (18)++
(19)-- (20)-+
995
3
84428
14510
5
53173145
3
421
+ +
(26) - - (27) + + (28) + +
6
4
535
5
- (30) - +
(31) -( - ) (32) -( - )
71048
8
51552 1
555325
(33) +( - ) (34) - +
(35)-+ (36)--
636636
39
6277
3811332
2212
583
(37) +++ (38)
6- - (39) - + - (40) -+
858
5
(41)
7
9
+
1
9
-
1
3
(42)
(45)
8
1
1
9-(
6
+
3
) (46)
(49)
2626
3
+
7
-
3
+
7
(50)
(53)2-
2
3
7
12
(54)
(57)5-
43
7
-1
7
(61)
15
6
+
5
8
+<
br>6
+
3
8
(62)
10
3
14
-(2
3
14
+3.9)
10
1111145145
563
3
4
-(
2
5
-
1
4
)
(43)
3
5
-(
1
2
-
1
4
)
(44)
3
10
+
11
5
-
3
2
7
+ (
3
4
+
5
7
)
(47)
5
175
1
8
-(
1
8
+3
10
) (48)
6
+
8
+
6
+
8
5
12
-(
5
12
-
1
10
) (51)
3
8
+(
5
8
-
5
9
) (52)
532
6
-
4
+
3
1
12
+
3
8
+(
5
8
+
58177111
12
) (55)
9
-(
18
+
9
) (56)
9
+
12
-
18
(58)
435753241
9
+
10
+
9
+
10
(59)
7
-(
5
-
7
) (60)
5
-(
5
+
1
3
)
7
5
+
4
9
+
53
3
15
5
17
9
+
5
(63)
4
-
3
+
6
(64)
3-
11
-
11
1
6
-3
11
20
-2.45+1.6
15
11231
6
-7
5
-2.8
5
3
+6
10
+3
3
+2.7
二、解方程。
2x-8.125=18.125 3x+
341737
x -(+)= x-(-)=
x
131455141
= x+=1
2x-= -x=
9
996654
2715
x
1
+x=
2
1472
3
4
x
7
8
31
4
-0.6+x=1
20
x
4
8
3
5
x1
3
4
-3
11
20
= 3
20
6.75
8
99
1
8
=18
1
8
x-9
+3x= 18
3
4
3.25+4.5
66
2
9
=4
1
5
x+3
-x=5
5
18
15.375+5X=20
73
9
14
=5.375
3
8
2x-8