分数加减混合运算习题
5471155521
= = = = -= [***********]142
= = = + 2 = 1 - 95458357
2525515171+= += += -= -= [***********]3341-= += -= 1- = -=
9978-38= 34+17= 29+12= 16+14= 34+5
6
= 59-29= 78+12 = 56+49 = 571212 =
8196 = 0.74+
25 35-16= 12+13= [1**********]+35= 35-35= 51
118+3= 2+5=
14+38= 411175
7-6= 5+8= 8-6= 67-23= 310+14
= 37+19= 13-15= 57-15= 7-57= 131415+8 = 15-3
= 14-15= 37+47= 34+5714= 8-4=
1+37= 15-16= 415+815= 5-12
13= 14 +13 = 45 -23 = 5-1
514= 8+8=
710 -15 = 35 14= 5- 14= 1-15-45= 7 + 14
3-0.25= 78894
3+2
3
= 34 + 516161
5 = 13+14= 115-6= 215-12= 2-134= 53
54
+7= 0.375+18= 13+12= 1-1
16212= 7+7= 3+6
=1111313-4= 3+5=
16+2
= 1-57=
51317321-=-=-= += 31 =
[1**********]9
2+3= 8-5= 1-5= 1+1= 7-2=
[1**********] 4+6= 3-1= 4+1= 9-1= 2+1=
[***********]1 1- = - = - = - =
599885424
517131511
+ = 1 - = + = - = +=
5439102672
5121311131+= += += 1- = -=
[1**********]12
173235531
+ + = [1**********]52
+= 5
153113174
-=+=+=+= 1-=
[**************]1
-= += 5+6= 7-1=
[1**********]
11
-= 56
2872812313
-= += -= 1-= +=
[***********]333
-= += +5= 5-=
772484
2
0.3= 12.5×8= 8÷0.4= 2.5×4= 7-6.38=
36÷0.9 = 5÷0.001 = 13×60 = 0.8÷0.02 = 0.36+1.54= 135÷5= 0.6×2= 4.8÷0.6= 1.7+3= 0.7÷3.5=
1.25×16= 9.6÷32= 2-0.09= 26.26÷26= 4.57+6.43= 5÷0.001= 2.5×4= 0.48÷120= 1.01×99= 4.3-1.6=
0.9×7= 0.6+7= 0.22×0.5= 1.25×8= 0.9×100= 0.64÷16= 10-9.12= 0.8×125= 3.2+1.78= 四、计算下面各题,能简算的要简算。
2
8.5-0.24-1.76 7.9×11-7.9 3.14×3 7.5-(2.5+3.8) 5×1.4 - 0.4×5 0.8×125-10
10-4.8-3.2 7.8×1.17-7.8×0.17 2.65×1.7+1.35×1.7 2.7×2-0.45 0.25×101 3.25×27+73×3.25 38.7-7.84÷1.4 8.8-2.5×1.8 4×9×0.25 7
1.25×0.25×3.2 78-8.5+22-0.5 15-5÷12-
12
1-
322313- -- 13472 + [1**********]468
[1**********]275
+ - 8585
78-512+16
59+(34+12)
415 - (8 + 14)
131516 + 56 5-49-59
15415 4233-(5+10) 110+38-25 348 + 7 + 58 571218 56 + 314- 3 152121 5197+4-14
35-(215+13
) 1116+7+5= 2315
612 5469 + 59 1212 34+356-8
6-(324-5)
16+1
2-16
=
27 - (27
- 18) 12(21
3-4 )
1+1-1 4-1+7 2+4+7+1 2-5+1 [1**********]363
2-2-5= 5-(5-1) 2+(3-1) 9-(2+1)
77
23+(12-14)
2-156-6=
1-45-15=
14+13+14+23
5-4+3 882 25+133+5 15+56+45= 23+41
5 +3 = 91357+8+8+710+20 -15 942 67+8311+11 1-11
2-4
=
45+13+15 815-(8715+18
)1-12 +4 1054 931213-(13+26
)1315-(13+25
)
1115 + 411+415=
3 - 14 - 1334 28 +﹙14 7
﹚
[1**********]-﹙+﹚ 15 -5+7 1-﹙3 -﹚ 1.875-﹙0.25+﹚ [1**********]
[1**********]35
--= +-= ++= ++=
[***********]
1-23-13
=
45-(12 +14 )
512 -(112 -12)
58-15
3+12
3–(1921 - 9
14
56 +27+16 34 27+14 2
7 45 +(318-4) 21511-38-58
-(34-25
)
58 23+56 2-1134 - 34 0.8+-37-4
7
579+12+49 1
3+
215+6
4-45 -15
58 +0.2 12+14-16
738+4-1112
25+13+35
321434331
-- -+ -(+) 4.8+19 +1.2
453
1112+5318+8+12
17+29+477+9
23454515 )
3214-7 4+2
7
6713-3
27+13-71655
27 +67 5101548414
79-18+29-3
8
6115611+15+11-
15 549375+78-14
5
+0. 125 16+8+116+8 715 + 1115 -(31011
15 474215 + 9 - 15 + 9 23+58+38+125153
4+9+6-9
1+312+11+5 714 + 28128
[1**********]45+10+5 78-⎛ 3⎝8+2⎫5⎪⎭
2-19-19
10
[1**********]0-6-2 -(-) 24-(3+2) -(-)
1238
8. 2-(1. 375+1
710)
815+13-815
1-16-38
829+(3-1
2
)
5-
49-59 5116-4+3
7612 423+0. 8-(3. 2-14) 49-25+59-25 513 + 513 + 513 78-512+16 2113
+(2-4) 1745+15+15 912
758-(13+0. 625) 813
9+6-4 724939 4233-(5+10) 3-(91467 ) 2-57-27
= 19919525-17815-215
354-12+16
5449+7+9
12-(34-38)
910 -(31
4-6 )7310-(4-25)
133114325-+ -(-) -(+) - +
[1**********]036
21411
10-( + ) - +
32563
415++ 9109
[**************] + - + = (+)-(-) - - -
[***********]33
5
151111511
-1-1= +0. 5+0. 5-= +++373338812
112
-
43- 2727
4271391-(-)+-(+) 531020106
解方程
195111
2x+ =4.625 + x = +χ= x +3=7
841248520
3753737
χ+=3 X +5 = 10 X + = +x =
9
27+x = 11
21
374+x =8
3
5=0.15
X÷4.5 = 20 X -13=27
x -512 =724
x + 34 = 1112
378
+X=12 x +16 = 35 0.5+4.5x=45.5 5x -3x= 3.2 2X -15=1- 1
5
x -47=2 58χ+337=4
17122 + x = 3 5.5X-3X =15 3x -29 =19 x -15
6=68124x +4⨯0. 8=9. 6
x +( 1334 )=2
x +279=9
-1.6 = 38.9 χ-815=25
2.7X
35
x - = x -168 X -
12
= x -(3+4) =1 χ3745
-
211
= +243
11511
+= 4x - =2- χ-9.1=22.9 3x -14×2 =11
366
8X -0.75×5=0.25 3.8x-0.8x=27
516=2
56-χ=14
34-X =16
3312-x =6
79-x= 427
614-x =5518
13-x =316
8 34 -x = 31035-x =1-3
4
89-x =56
133
1683×2-6x = 4.2