(2022年整理)分数加减混合运算习题..pdf

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1、学海无涯1 710 - 15 = 13 - 52457 + 51423 + 14 =6554=59 - 2514 + 1558 + 1345 + 2 = 1 - 27 = 9295= 7275= 8581= 6561= 107101= 9792= 5153= 1211129= 153= 7471= 8783= 5453= 5353= 8531= 2151= 4371= 4183= 7461= 5181= 8765= 9221= 7632= 10341= 7391= 3151= 6141= 7551= 775= 51+83= 151431= 43+65= 51417473454341879295

2、731615115815413125781214134523= 514= 818556497101535145- 41= 1-15-54= 512 + 712 = 78 + 18 = 2 + 49 = 430.25= 3732= 89 + 16 = 34 + 516 = 16 + 15 = 31+41= 51-61= 0.74+5221512= 431274350.375+851536131211217176326131214131513121163751学海无涯2 51539195103107913235 + 15 = 939212512865131218287764418351542110

3、94132 1 35 = 7929 = 78 + 18 = 5241= 2141= 107+ 51= 1 43= 21+ 65= 31- 91= 7521= 125121= 32+5143+4111322 =71141710 - 310 = 25 + 35 = 57 + 514 = 34 + 17 = 52518385312115153411114117101213195135+136= 8781= 51611271229298158311112163161375214383755= 543= 0.32= 12.5 8= 80.4 2.5 4= 7-6.38360.9 = 5 0.001 =

4、1360 = 0.80.02 =0.36+1.54135 50.6 2= 4.80.6= 1.7+3= 0.73.5= 1.25 16= 9.632= 20.09= 26.2626= 4.576.43= 50.001= 2.54= 0.481201.01994.3-1.6= 0.9 7= 0.6+7= 0.220.5 1.258= 0.9100= 0.64 16= 10-9.12= 0.8125= 3.21.78四、计算下面各题，能简算的要简算。8.5 0.24 1.76 7.9117.9 3.14327.5（ 2.53.8）51.4 - 0.4 5 0.8 125-10 10-4.8-3.2

5、 7.8 1.17 7.8 0.17 2.65 1.7+1.35 1.7 2.7 2-0.45 0.25101 3.2527+733.25 38.7-7.841.4 8.8-2.51.8 49 0.25 1.25 0.25 3.2 788.5 220.5 15-512- 712学海无涯3 5210318361242315 + 35 - 45 = 78 - 29 + 18 = 58 + 45 - 38 + 15 ) 0.25+ 1115 + 34 + 4157151921 + 221 10712 - 512871256134（52103）754114943638595（4321）10183525

6、3（15231）6（4352）54- (81+ 41) 83+ 74+ 856171516121611315 - 16 + 56 25 - 512 - 71823 + 16 - 51272- (72- 81) 5949556341356 + 49 + 5912 + （2314）41512112781345197549231653275722)2185(85)2143(92)4152(10932（2141）52315376118113139（1332612）2616551+65+5412141)5231(151314515= 234513= 54+31+511511+ 114+154= 4131

7、413279818375158（158187）3 - 14 - 13 - 34学海无涯4 4514139103203151712342728131457256237121514512756156 313 1121.875 0.25232017203209= 928385= 141145143= 414143= 13231= 5627165823564451545（1214）342714272-14 - 13 - 34 0.8+58 +0.2 125（12121）54（8341） 273742141618531125111583859512794874312113(1921 - 914 ) 6（

8、4352）61523152315331524315410354)4183(434.8+1491+1.2 1211+85+83+1219781+9283156115151111671+927497125.054187545169831678123 + 45 -(45 - 15 ) 715 + 1115 -(310 + 1115 )154+ 97- 154+ 92学海无涯5 342714273183853295619542136731377285121183121711 + 15 + 411 + 2516 +57 +56 + 725210753528387194191528323261251076

9、（61121）)1272953(24199（981910）)1071375.1(2.8)412.3(8.0324)625.031(857158215715251583115894529552986143431256116183135 + 135 + 13579 +23 - 4995749498（3221）871256134（52103）21（4383）5949532（2141）3（914 + 67）910（3416）3141651541575127572= )5243(107541033221（4383）65（2131）453101510（2312）451613951019432+ 5132+

10、 51= （2017+103）（2017107）2425413513413学海无涯6 311751315315 .05.0311211858112127427354（1072013）+109（6132）解方程 2x+584.625 14 + x = 1112209518743x395X35= 710X + 53 = 8712783x72 x = 2111 x + 34 = 111273=436. 98. 044x8743x83X=12717 + 12 + x = 23x + （13 + 34）=2 x+0.75- 35 0.15 x16 = 35 0.5+4.5x=45.5 9792xX4.5 = 20 5x 3x= 3.2 5.5X-3X 15 X31=722X51=1- 513x29 =19 2.7X1.6 = 38.9 x125=247274x6561x52158x - 316 = 587231x1)5443(x32 = 1214X316165 4x - 13 =2- 13 8 9.1 22.9 3x 142 11 8X0.75 5=0.25 3.8x-0.8x=27 学海无涯7 56 -x 12651211x831613x6598x416597x= 27434x3101316 - x= 3843X611855416x43153x326x = 4.2