五年级解方程和计算题
小学五年级解方程计算题练习题
小学五年级解方程计算题练习题一、解方程专题7+=19X+120=+X=90X+150=.4+X=95.54.4X=444X-6=19X-77=2752X+55=129X × 4.5=90X-3.3=8.9X-77=1447 X=63X × 5=100X-25.8=95.4X ÷7=9X× 9=4.56.2X=124X-54.3=100X÷4.4=10X÷78=10.5X÷2.5=100X÷3=33.3X÷2.2=89-X=4.5 77-X=21.99÷X=0.033×(X-4)=4673.2-X=52.599-X=61.97÷X=0.001(８+X)÷5=1587-X=223.3÷X=0.356÷X=5(X+5) ÷3=1666-X=32.38.8÷X=4.439÷X=315÷(X+0.5)=1.512X+8X=4012X-8X=4012X+X=26X+ 0.5X=6X-0.2X=326×5+2X=4424-3X=3X-6=121.3X+X=2620X-50=50（5+1）=6056-2X=203X+5X=4828+6X=8899X=100-X4X+2=632-22X=10X+3=18X+32=7614X-8X=1210X×3X+6=1816+8X=402X-8=84X-3×9=298X-3X=105 X-0.8X=6(X-2)÷3=73X-8=16X-6×5=4212X+8X=4.8X÷5+9=213X+9=27X+5=77(X-2)=49(200-X)÷5=305.3+7X=7.42X+3=104×8+2X=3648-27+5X=313X÷5=4.85×3-X=840-8X=5X÷5=215X+25=100X+15=302X+8=20 35-5X=103(X-9)=3312÷X=0.320-2X=6（X-6）=20 1054-X=246.75 -X=1.682X+9=31（9-X）=206(X-3)=127X=÷X=420.7X=4.20.7X+6×5=375(10 X-25)÷5=152X -7.5 = 8.57.9X -X = 8.9713(X + 5 ) = 1692X+8=166X-8=4X-8=6X9X-3X=6X÷5=105X+X=94÷5X=206X-8=4X+7X=8X÷5=102X-6=125X+X=99X-3X=6X+7X=82X+8=16X-8=6 X4÷5X=202X-6=121÷2X-8=4X-5÷6=77X+7=143X+7=286÷7X-8=45X-3X=46X-6=03X-7=263X-8=302X+16=195X+6=119X-X=166X+6=125X+8=192X-8=1024X+X=503X-3=114-6X=815+6X=275-8X=47X+8=157X+7=146X-6=0 X-5÷6=724X+X=503X-3=15X+6=113X+7=286÷7X-8=45X-3X=42X-8=103X-7=263X-8=302X+16=192X-8=49X-X=166X+6=125X+8=1914-6X=815+6X=275-8X=47X+8=159-2X=1 9+6X=146X-7=12X-30=124+5X=9X+9X=4+77X-9=86X-21=2110-X=82X+9=17X-56=16X-3=68X+9=178-4X=68-7X=19X=184X-18=135X+9=116-2X=1126×1.5= 2XX+4+8=239.25-X=0.4033 -5X=800.2X-0.4+0.5=3.77X-12=816.9÷X=0. 31.8- 6X=549.4X-0.4X=16.2X-5.7=2.15X÷0.5=2.66.7X-60.3=6.712 -4X=205X-2X=18X+13=339 +4X =4012X+34X=118X-14 X= 1223 X-5×14 = 1412 +34 X=5622-14 X= 1223 X-14 X= 145X-2X=301.2X-0.5X=6.371X+3=124X+14 X= 6589X-43X=9.223.4=2X=5635X+103=17123 X=14 X +145X-45=1004X-X=48.6239X+51=11930X-12X-14X=140X+61=223247X+114=37187X+255=X+203=1583X+151=X+99=X+43=X+47=115 79X+199=11622X+90=15870X+138=206183X+251=63179X+247=59226X+38=10671X+191=107131X+199=1179X+147=215127X+195=774X+142=210174X+242=X+190=2128X+34=X+238=X+186=X+24=X+78=9357X+172=7866X +134=202146X+214=26100X+6=74242X+54=12214X+82=X+30=X+234=4694X+162=X+110=X+162=79142X+210=2290X+158=X+106=174239X+100=1017X+153=X+248=X+33=X+86=223X+185=X +133=X+81=14961X+129=197156X+15=17789X+157=225217X+29=X+82=2549X+77=1456X+123=33245X+57=X+110=2637X+105=X+157=7419X+181=24941X+177=19347X+209=2195X+1=X+205=X+251=X+48=6428X+143=X+33=206 214X+74=24050X+212=24241X+102=12227X+133=201248X+128=144145X+9=18120X+156=17213X+81=149107X+222=128202X+108=176135X+250=156217X+29=97249X+113=29244X+56=12420X+141=5778X+240=X+188=X+241=X+84=X+130=40 106X+12=80232X+96=1321X+138=4848X+184=199197X+58=22434X+196=855X+191=207163X+22=184232X+112=127128X+248=165171X+30=19248X+168=8591X+206=112186X+92=16056X+176=X+19=X+72=2449X+171=X+217=X+15=31 115X+251=1111X+132=48106X+17=2847X+214=224230X+89=25169X+231=4349X+211=23245X+151=219115X+236=152160X+21=187143X+7=18080X+197=107173X+79=147195X+75=90250X+205=X+3=1834X+201=X+139=X+185=X+238=254 158X+112=22235X+99=15117X+72=23814X+181=X+119=X+171=8830X+166=X+109=X+46=11485X+40=X+94=X+37=47246X+126=X+69=X+6=X+59=231(0.5+X)+X=9.8÷22(X+X +0.5)=9.+X=6X450+5X+X=3200X-0.8X=6X+5.6=9.4X-0.7X=3.615X =33X-8=1618(X-2)=X=300-4X12X-8X=4.891÷X =1.37(X-2)=2X+37X+5.3=7.41.2X=81.6X+8.3=10.73X+9=273X÷5=4.830÷X+25=851.4×8-2X=66X-12.8×3=0.-3X=170X+2X+18=786X-3X=181.8X=0.97248-27+5X=31(200-X)÷5=30X÷0.756=9010.5+X+21=563(X+0.5)=210.273÷X=0.359X-40=50.1(X+6)=3.3×0.40.5X+8=43(X-140)÷70=4X÷5+9=214(X-5.6)=1.61.5X+18=3X7(6.5+X)=87.5(27.5-3.5)÷X=42(X+X+0.5)=9.8X-0.7X=3.612X-8X=4.891÷X =1.33X+9=2730÷X+25=857.5*2X=15X+8.3=10.78(X-2) =2701.2X=81.615X =37X+5.3=7.46X-12.8×3=0.06X+5.6=9.43X-8=163X÷5=4.8410-3X=1701.4×8-2X=63(X+0.5)=210.5X+8=436X-3X=181.5X+18=3X5×3-X÷2=8 9X-40=5X+2X+18=784(X-5.6)=1.60.273÷X=0.35X÷5+9=21(200-X) ÷5=307(6.5+X)=87.51.8X=0.972X÷0.756=9048-27+5X=3110.5+X+21=56(X-140)÷70=40.1(X+6)=3.3×0.4(27.5-3.5)÷X=4X+19.8=25.85.6X=33.69.8-X=3.875.6÷X=12.65X+12.5=32.35(X+8)=102X+3X+10=703.5-5X=20.3×7+4X=12.520-9X=1.2×6.25(X-3) ÷2=7.52X-20=43X+6=183(X+3)=50-X+35X+15=60X÷1.5-1.25=0.754X-1.3×6=2.66X+12.8=15.8150×2+3X=6902(2.8+X)=10.413.2X+9X=33.33X=X+100X+4.8=7.26X+18=483(X+2.1)=1 0.512X-9X=8.742X+25X=1349X+4×2.5=915X-45=10013(X+5)=1691.5(X+1.6)=3.64.2 X+2.5X=1341.2X-0.5X=6.32X-97=34.22(X-3)=5.810.5X+6.5X=5123.4=2X=563.4X-48=26.865X+7=4289X-43X=9.24X-X=48.64.5X-X=28X-5.7=2.155X-2X=183X+0.7=53.5×2=4.2+X16.9÷X=0. 31.8 +6X=5423X-14X=1426×1.5=2X+100.5×16-16×0.2=4X139.25-X=0.403 23X=14X+14X+14X=653-5X=806.7X-60.3=6.79+4X =402X+8=163X+7=283X-8=302X+16=196X-6=03X-7=266X+6=125X+8=195X+6=119X-X=163X-3=114-6X=82X-8=1024X+X=505X-3X=415+6X=275-8X=47X+8=159-2X=14+5X=910-X=88-4X=68-7X=19X=188X+9=176X-7=12X-30=124X-18=139+6X=147X-9=86X-21=215X+9=112X+9=17X-56=16X-3=66-2X=11X+4+8=237X-12=8X-5.7=2.155X-2X=183X 0.7=5 16.9÷X=0.36.7X-60.3=6.79.4X-0.4X=16.23.5×2=4.2 X26×1.5= 2X9.25-X=0.403X÷0.5=2.63-5X=801.8-6X=549+4X=400.2X-0.4+0.5=3.712-4X=2012X＋34X=4618X-14X=1223 X-5×14=1412＋34X=5622-14X=12X-0.8X=612x-8x=4.8二、小数一步加、减法应用题1、一本数学读物6.25元，一本语文读物5.86元。
(完整版)五年级解方程计算题
(完整版)五年级解方程计算题五年级解方程计算题（完整版）题目一：求下列方程的解：1. $2x + 5 = 17$2. $3y - 8 = 25$解答：1. 针对方程$2x + 5 = 17$，我们需要将变量$x$的系数和常数项进行运算。
首先，将方程两边都减去5，得到$2x = 12$。
然后，我们再将方程两边都除以2，得到解$x = 6$。
所以，方程的解为$x = 6$。
2. 针对方程$3y - 8 = 25$，我们需要将变量$y$的系数和常数项进行运算。
首先，将方程两边都加上8，得到$3y = 33$。
然后，我们再将方程两边都除以3，得到解$y = 11$。
所以，方程的解为$y = 11$。
题目二：求下列方程的解：1. $4a + 2 = 18$2. $5b - 3 = 22$解答：1. 针对方程$4a + 2 = 18$，我们需要将变量$a$的系数和常数项进行运算。
首先，将方程两边都减去2，得到$4a = 16$。
然后，我们再将方程两边都除以4，得到解$a = 4$。
所以，方程的解为$a = 4$。
2. 针对方程$5b - 3 = 22$，我们需要将变量$b$的系数和常数项进行运算。
首先，将方程两边都加上3，得到$5b = 25$。
然后，我们再将方程两边都除以5，得到解$b = 5$。
所以，方程的解为$b = 5$。
总结：通过对给定的方程进行运算，我们得到了相应的解。
解方程的过程是通过运用数学运算的规则，将已知的方程转化为含有未知数的等式，并逐步进行运算求解。
解方程的答案即为使方程成立的未知数的值。
小学五年级解方程计算题练习题
小学五年级解方程计算题练习题一、解方程专题7+=19 X+120=176 58+X=90X+150=29079.4+X=95.5 2X+55=129 7 X=63 X× 9=4.54.4X=444 X × 4.5=90 X ×5=100 6.2X=124X-6=19 X-3.3=8.9 X-25.8=95.4X-54.3=100X-77=275 X-77=144 X ÷7=9 X÷4.4=10X÷78=10.5 X÷2.5=100 X÷3=33.3 X÷2.2=89-X=4.5 73.2-X=52.5 87-X=22 66-X=32.377-X=21.9 99-X=61.9 3.3÷X=0.38.8÷X=4.49÷X=0.03 7÷X=0.001 56÷X=5 39÷X=33×(X-4)=46 (８+X)÷5=15 (X+5) ÷3=1615÷(X+0.5)=1.512X+8X=40 12X-8X=40 12X+X=26X+ 0.5X=6X-0.2X=321.3X+X=26 3X+5X=48 14X-8X=126×5+2X=44 20X-50=50 28+6X=8832-22X=1024-3X=3 10X×〔5+1〕=60 99X=100-XX+3=18X-6=12 56-2X=20 4X+2=6 X+32=763X+6=18 16+8X=40 2X-8=84X-3×9=298X-3X=105 X-6×5=42 X+5=72X+3=10X-0.8X=6 12X+8X=4.8 7(X-2)=49 4×8+2X=36(X-2)÷3=7 X÷5+9=21 (200-X)÷5=3048-27+5X=313X-8=16 3X+9=27 5.3+7X=7.43X÷5=4.85×3-X=8 40-8X=5 X÷5=215 X+25=100X+15=30 2X+8=20 20-2X=6 2X+9=3135-5X=10 5〔X-6〕=20 10〔9-X〕=20 6(X-3)=123(X-9)=33 54-X=24 7X=49 126÷X=4212÷X=0.3 6.75 -X=1.68 0.7X=4.20.7X+6×5=37(10 X-25)÷5=15 2X -7.5 = 8.5 7.9X -X = 8.9713(X + 5 ) = 1692X+8=16 X÷5=10 X+7X=89X-3X=66X-8=4 5X+X=9 X÷5=10X+7X=8X-8=6X 4÷5X=20 2X-6=122X+8=169X-3X=6 6X-8=4 5X+X=9 X-8=6 X4÷5X=20 2X-6=12 1÷2X-8=4 X-5÷6=77X+7=14 6X-6=0 5X+6=11 2X-8=103X+7=28 3X-7=26 9X-X=1624X+X=506÷7X-8=4 3X-8=30 6X+6=123X-3=15X-3X=4 2X+16=19 5X+8=19 14-6X=815+6X=27 5-8X=4 7X+8=157X+7=146X-6=0 5X+6=11 2X-8=102X-8=4X-5÷6=7 3X+7=28 3X-7=26 9X-X=1624X+X=50 6÷7X-8=4 3X-8=30 6X+6=123X-3=1 5X-3X=4 2X+16=195X+8=1914-6X=8 15+6X=27 5-8X=47X+8=159-2X=1 4+5X=9 10-X=88X+9=179+6X=14 X+9X=4+7 2X+9=17 8-4X=66X-7=12 7X-9=8 X-56=1 8-7X=1X-30=12 6X-21=21 6X-3=69X=184X-18=13 5X+9=11 6-2X=1126×1.5= 2XX+4+8=23 7X-12=8 X-5.7=2.155X-2X=189.25-X=0.403 16.9÷X=0. 3 X÷0.5=2.6 X+13=333 -5X=801.8- 6X=54 6.7X-60.3=6.7 9 +4X =400.2X-0.4+0.5=3.7 9.4X-0.4X=16.2 12 -4X=20 12X+34X=118X-14 X= 12 23 X-5×14 = 14 12 +34 X=56 22-14 X= 1223 X-14 X= 14 X+14 X= 65 23 X=14 X +1430X-12X-14X=15X-2X=30 89X-43X=9.2 5X-45=10040X+61=2231.2X-0.5X=6.3 23.4=2X=56 4X-X=48.6247X+114=3771X+3=124 35X+103=171 239X+51=119187X+255=67135X+203=15 83X+151=219 31X+99=167137X+43=111235X+47=115 183X+251=63 131X+199=1179X+147=21579X+199=116 179X+247=59 127X+195=774X+142=21022X+90=158 226X+38=106 174X+242=54122X+190=270X+138=206 71X+191=107 128X+34=102170X+238=50118X+186=254 163X+24=190 198X+78=9357X+172=7866X+134=202 14X+82=150 218X+30=98166X+234=46146X+214=26 94X+162=230 42X+110=17842X+162=79100X+6=74 142X+210=22 90X+158=22638X+106=174242X+54=122 239X+100=10 17X+153=169133X+248=154221X+33= 222X+86=2 23X+185=253 65X+133=201 13X+81=149 217X+29=97 218X+82=25419X+181=24961X+129=197 9X+77=145 6X+123=3341X+177=193156X+15=177 245X+57=125 245X+110=2647X+209=2189X+157=225 37X+105=173 37X+157=7495X+1=69137X+205=17 134X+251=161 169X+48=64 28X+143=49169X+33=206 227X+133=201 13X+81=149 217X+29=97214X+74=240 248X+128=144 107X+222=128 249X+113=2950X+212=24 145X+9=181 202X+108=176 244X+56=124241X+102=12 20X+156=172 135X+250=156 20X+141=5778X+240=52 120X+188=256 120X+241=157 178X+84=15213X+130=40 48X+184=199 163X+22=184 48X+168=85106X+12=80 197X+58=224 232X+112=127 91X+206=112232X+96=13 34X+196=8 128X+248=165 186X+92=16021X+138=48 55X+191=207 171X+30=192 56X+176=92113X+19=87 208X+72=244 9X+171=239100X+217=127135X+15=31 47X+214=224 245X+151=219 80X+197=107115X+251=11 230X+89=251 115X+236=152 173X+79=14711X+132=48 69X+231=43 160X+21=187 195X+75=90106X+17=28 49X+211=23 143X+7=180 250X+205=115123X+3=18 34X+201=212 233X+139=207 68X+185=95103X+238=254 14X+181=192 213X+119=187 51X+171=88158X+112=22 30X+166=182 198X+109=119 140X+46=114235X+99=15 85X+40=206 214X+94=110 126X+37=47117X+72=238 246X+126=142 157X+69=79 100X+6=74194X+59=231 (0.5+X)+X=9.8÷2 2(X+X+0.5)=9.8 25000+X=6X450+5X+X=3200 X-0.8X=6 12X-8X=4.81.2X=81.6X+5.6=9.4 X-0.7X=3.6 91÷X =1.3X+8.3=10.715X =3 3X-8=16 7(X-2)=2X+33X+9=2718(X-2)=270 12X=300-4X 7X+5.3=7.4 3X÷5=4.830÷X+25=85 1.4×8-2X=6 6X-12.8×3=0.06 410-3X=170X+2X+18=78 (200-X)÷5=30 3(X+0.5)=21 0.5X+8=436X-3X=18 1.5X+18=3X 0.273÷X=0.35 (X-140)÷70=41.8X=0.972 X÷0.756=90 9X-40=5X÷5+9=2148-27+5X=31 10.5+X+21=56 0.1(X+6)=3.3×0.44(X-5.6)=1.67(6.5+X)=87.5 (27.5-3.5)÷X=4 2(X+X+0.5)=9.8 X-0.7X=3.612X-8X=4.8 7.5*2X=151.2X=81.6 X+5.6=9.491÷X =1.3 X+8.3=10.7 15X =33X-8=163X+9=27 8(X-2) =270 7X+5.3=7.43X÷5=4.830÷X+25=85 1.4×8-2X=6 6X-12.8×3=0.06 410-3X=1703(X+0.5)=21 0.5X+8=43 6X-3X=181.5X+18=3X5×3-X÷2=8 0.273÷X=0.351.8X=0.972 X÷0.756=909X-40=5 X÷5+9=21 48-27+5X=3110.5+X+21=56X+2X+18=78 (200-X) ÷5=30 (X-140)÷70=40.1(X+6)=3.3×0.44(X-5.6)=1.6 7(6.5+X)=87.5 (27.5-3.5)÷X=4 X+19.8=25.85.6X=33.6 9.8-X=3.8 75.6÷X=12.65X+12.5=32.35(X+8)=102 X+3X+10=70 3(X+3)=50-X+35X+15=603.5-5X=2 0.3×7+4X=12.5 X÷1.5-1.25=0.75 4X-1.3×6=2.620-9X=1.2×6.25 (X-3) ÷2=7.5 6X+12.8=15.8 150×2+3X=6902X-20=4 3X+6=18 2(2.8+X) =10.413.2X+9X=33.33X=X+100 X+4.8=7.2 6X+18=483(X+2.1)=10.512X-9X=8.7 13(X+5)=169 2X-97=34.23.4X-48=26.842X+25X=134 1.5(X+1.6)=3.6 2(X-3)=5.8 65X+7=429X+4×2.5=91 4.2 X+2.5X=134 10.5X+6.5X=51 89X-43X=9.25X-45=100 1.2X-0.5X=6.3 23.4=2X=564X-X=48.64.5X-X=28 X-5.7=2.15 5X-2X=183X+0.7=53.5×2=4.2+X 26×1.5=2X+10 0.5×16-16×0.2=4X 139.25-X=0.40316.9÷X=0. 3 23X=14X+14 X+14X=65 3-5X=801.8 +6X=54 6.7X-60.3=6.7 9+4X =40 2X+8=1623X-14X=14 X+7X=8 9X-3X=66X-8=45X+X=9 X-8=6X 4/5X=20 2X-6=127X+7=14 6X-6=0 5X+6=11 2X-8=103X+7=28 3X-7=26 9X-X=1624X+X=503X-8=30 6X+6=12 3X-3=15X-3X=42X+16=19 5X+8=19 14-6X=815+6X=275-8X=4 7X+8=15 9-2X=14+5X=910-X=8 8X+9=17 9+6X=142X+9=178-4X=6 6X-7=12 7X-9=8 X-56=18-7X=1 X-30=12 6X-21=216X-3=69X=18 4X-18=13 5X+9=11 6-2X=11X+4+8=23 7X-12=8 X-5.7=2.15 5X-2X=183X 0.7=5 3.5×2= 4.2 X 26×1.5= 2X 9.25-X=0.40316.9÷X=0.3 X÷0.5=2.6 3-5X=801.8-6X=546.7X-60.3=6.7 9+4X=40 0.2X-0.4+0.5=3.7 12-4X=209.4X-0.4X=16.2 12X＋34X=46 18X-14X=12 23 X-5×14=1412＋34X=56 22-14X=12 X-0.8X=612x-8x=4.8二、小数一步加、减法应用题1、一本数学读物6.25元，一本语文读物5.86元。
第四章___五年级解方程计算题
第四章___五年级解方程计算题2(X+X+0.5)=9.8 25000+x=6x3200=450+5X+XX-0.8X=612x-8x=4.87.5*2X=151.2x=81.6x+5.6=9.4x-0.7x=3.691÷x＝1.3X+8.3=10.715x＝33x－8＝16 7(x-2)=2x+33x+9=2718(x-2)=27012x=300-4x7x+5.3=7.43x÷5=4.830÷x+25=851.4×8-2x=66x-12.8×3=0.06410-3x=1703(x+0.5)=210.5x+8=436x-3x=181.5x+18=3x5×3-x÷2=80.273÷x=0.351.8x=0.972x÷0.756=909x-40=5x÷5+9=2148-27+5x=3110.5+x+21=56x+2x+18=78(200-x)÷5=30(x-140)÷70=40.1(x+6)=3.3×0.44(x-5.6)=1.67(6.5+x)=87.5(27.5-3.5)÷x=4x+19.8=25.85.6x=33.69.8-x=3.875.6÷x=12.65x+12.5=32.35(x+8)=102x+3x+10=703(x+3)=50-x+35x+15=603.5-5x=20.3×7+4x=12.5x÷1.5-1.25=0.754x-1.3×6=2.620-9x=1.2×6.256x+12.8=15.8150×2+3x=6902x-20=43x+6=182(2.8+x)=10.4(x-3)÷2=7.5 13.2x+9x=33.3 3x=x+100x+4.8=7.26x+18=483(x+2.1)=10.5 12x-9x=8.713(x+5)=1692x-97=34.23.4x-48=26.8 42x+25x=134 1.5(x+1.6)=3.6 2(x-3)=5.865x+7=429x+4×2.5＝91 4.2x+2.5x＝134 10.5x+6.5x=5189x-43x=9.25x-45=1001.2x-0.5x=6.323.4=2x=564x-x=48.64.5x-x=28X-5.7=2.15155X-2X=183X+0.7=53.5×2=4.2+x26×1.5=2x+100.5×16―16×0.2=4x139.25－X=0.40316.9÷X=0.323x=14x＋14x＋14x=653－5x＝801.8+6x＝546.7x－60.3＝6.79＋4x＝402x+8=1623x-14x=14x+7x=89x-3x=66x-8=45x+x=9x-8=6x4/5x=202x-6=127x+7=146x-6=05x+6=112x-8=101/2x-8=4x-5/6=73x+7=283x-7=269x-x=1624x+x=506/7x-8=43x-8=306x+6=123x-3=15x-3x=42x+16=195x+8=1914-6x=815+6x=27 5-8x=4 7x+8=15 9-2x=1 4+5x=9 10-x=8 8x+9=17 9+6x=14 x+9x=4+7 2x+9=17 8-4x=6 6x-7=12 7x-9=8 x-56=1 8-7x=1 x-30=12 6x-21=216x-3=69x=184x-18=135x+9=116-2x=11x+4+8=237x-12=8X-5.7=2.15155X-2X=183X0.7=53.5×2=4.2x26×1.5=2x0.5×16―16×0.2=4x9.25－X=0.40316.9÷X=0.3X÷0.5=2.63－5x＝801.8-6x＝546.7x－60.3＝6.79＋4x＝400.2x－0.4＋0.5＝3.79.4x－0.4x＝16.212－4x＝201/3x＋5/6x＝1.412x＋34x=118x－14x=1223x－5×14=1412＋34x=5622－14x=12(0.5+x)+x=9.8÷22(X+X+0.5)=9.825000+x=6x3200=450+5X+XX-0.8X=612x-8x=4.87.5*2X=151.2x=81.6x+5.6=9.4x-0.7x=3.691÷x ＝1.3X+8.3=10.715x＝33x－8＝167(x-2)=2x+33x+9=2718(x-2)=27012x=300-4x7x+5.3=7.43x÷5=4.830÷x+25=851.4×8-2x=66x-12.8×3=0.06 410-3x=1703(x+0.5)=21 0.5x+8=436x-3x=18 1.5x+18=3x5×3-x÷2=80.273÷x=0.351.8x=0.972x÷0.756=909x-40=5x÷5+9=2148-27+5x=3110.5+x+21=56x+2x+18=78(200-x)÷5=30(x-140)÷70=40.1(x+6)=3.3×0.44(x-5.6)=1.67(6.5+x)=87.5(27.5-3.5)÷x=44x=4402.1x=16.818(x-2)=27018(x-2)=27012x=300-4x7x+5.3=7.40.1(x+6)=3.3×0.44(x-5.6)=1.67(6.5+x)=87.5(27.5-3.5)÷x=4(0.5+x)+x=9.8÷2 x+2x+18=78 1.5(x+1.6)=3.6 2(X+X+0.5)=9.8 (200-x)÷5=30 2(x-3)=5.8 25000+x=6x (x-140)÷70=4 65x+7=423200=450+5X+X 0.1(x+6)=3.3×0.4 9x+4×2.5＝91 X-0.8X=6 4(x-5.6)=1.6 4.2x+2.5x＝134 12x-8x=4.8 7(6.5+x)=87.5 10.5x+6.5x=517.5*2X=15 (27.5-3.5)÷x=4 89x-43x=9.21.2x=81.6 x+19.8=25.8 5x-45=100第四章___五年级解方程计算题一、填空：18分每空1分1、一筐黄瓜的质量是一篮土豆的5倍。
小学五年级解方程计算题练习题
小学五年级解方程计算题练习题一、解方程专题7+=19X+120=+X=90X+150=.4+X=95.54.4X=444X-6=19X-77=2752X+55=129X × 4.5=90X-3.3=8.9X-77=1447 X=63X × 5=100X-25.8=95.4X ÷7=9X× 9=4.56.2X=124X-54.3=100X÷4.4=10X÷78=10.5X÷2.5=100X÷3=33.3X÷2.2=89-X=4.5 77-X=21.99÷X=0.033×(X-4)=4673.2-X=52.599-X=61.97÷X=0.001(８+X)÷5=1587-X=223.3÷X=0.356÷X=5(X+5) ÷3=1666-X=32.38.8÷X=4.439÷X=315÷(X+0.5)=1.512X+8X=4012X-8X=4012X+X=26X+ 0.5X=6X-0.2X=326×5+2X=4424-3X=3X-6=121.3X+X=2620X-50=50（5+1）=6056-2X=203X+5X=4828+6X=8899X=100-X4X+2=632-22X=10X+3=18X+32=7614X-8X=1210X×3X+6=1816+8X=402X-8=84X-3×9=298X-3X=105 X-0.8X=6(X-2)÷3=73X-8=16X-6×5=4212X+8X=4.8X÷5+9=213X+9=27X+5=77(X-2)=49(200-X)÷5=305.3+7X=7.42X+3=104×8+2X=3648-27+5X=313X÷5=4.85×3-X=840-8X=5X÷5=215X+25=100X+15=302X+8=20 35-5X=103(X-9)=3312÷X=0.320-2X=6（X-6）=20 1054-X=246.75 -X=1.682X+9=31（9-X）=206(X-3)=127X=÷X=420.7X=4.20.7X+6×5=375(10 X-25)÷5=152X -7.5 = 8.57.9X -X = 8.9713(X + 5 ) = 1692X+8=166X-8=4X-8=6X9X-3X=6X÷5=105X+X=94÷5X=206X-8=4X+7X=8X÷5=102X-6=125X+X=99X-3X=6X+7X=82X+8=16X-8=6 X4÷5X=202X-6=121÷2X-8=4X-5÷6=77X+7=143X+7=286÷7X-8=45X-3X=46X-6=03X-7=263X-8=302X+16=195X+6=119X-X=166X+6=125X+8=192X-8=1024X+X=503X-3=114-6X=815+6X=275-8X=47X+8=157X+7=146X-6=0 X-5÷6=724X+X=503X-3=15X+6=113X+7=286÷7X-8=45X-3X=42X-8=103X-7=263X-8=302X+16=192X-8=49X-X=166X+6=125X+8=1914-6X=815+6X=275-8X=47X+8=159-2X=1 9+6X=146X-7=12X-30=124+5X=9X+9X=4+77X-9=86X-21=2110-X=82X+9=17X-56=16X-3=68X+9=178-4X=68-7X=19X=184X-18=135X+9=116-2X=1126×1.5= 2XX+4+8=239.25-X=0.4033 -5X=800.2X-0.4+0.5=3.77X-12=816.9÷X=0. 31.8- 6X=549.4X-0.4X=16.2X-5.7=2.15X÷0.5=2.66.7X-60.3=6.712 -4X=205X-2X=18X+13=339 +4X =4012X+34X=118X-14 X= 1223 X-5×14 = 1412 +34 X=5622-14 X= 1223 X-14 X= 145X-2X=301.2X-0.5X=6.371X+3=124X+14 X= 6589X-43X=9.223.4=2X=5635X+103=17123 X=14 X +145X-45=1004X-X=48.6239X+51=11930X-12X-14X=140X+61=223247X+114=37187X+255=X+203=1583X+151=X+99=X+43=X+47=115 79X+199=11622X+90=15870X+138=206183X+251=63179X+247=59226X+38=10671X+191=107131X+199=1179X+147=215127X+195=774X+142=210174X+242=X+190=2128X+34=X+238=X+186=X+24=X+78=9357X+172=7866X +134=202146X+214=26100X+6=74242X+54=12214X+82=X+30=X+234=4694X+162=X+110=X+162=79142X+210=2290X+158=X+106=174239X+100=1017X+153=X+248=X+33=X+86=223X+185=X +133=X+81=14961X+129=197156X+15=17789X+157=225217X+29=X+82=2549X+77=1456X+123=33245X+57=X+110=2637X+105=X+157=7419X+181=24941X+177=19347X+209=2195X+1=X+205=X+251=X+48=6428X+143=X+33=206 214X+74=24050X+212=24241X+102=12227X+133=201248X+128=144145X+9=18120X+156=17213X+81=149107X+222=128202X+108=176135X+250=156217X+29=97249X+113=29244X+56=12420X+141=5778X+240=X+188=X+241=X+84=X+130=40 106X+12=80232X+96=1321X+138=4848X+184=199197X+58=22434X+196=855X+191=207163X+22=184232X+112=127128X+248=165171X+30=19248X+168=8591X+206=112186X+92=16056X+176=X+19=X+72=2449X+171=X+217=X+15=31 115X+251=1111X+132=48106X+17=2847X+214=224230X+89=25169X+231=4349X+211=23245X+151=219115X+236=152160X+21=187143X+7=18080X+197=107173X+79=147195X+75=90250X+205=X+3=1834X+201=X+139=X+185=X+238=254 158X+112=22235X+99=15117X+72=23814X+181=X+119=X+171=8830X+166=X+109=X+46=11485X+40=X+94=X+37=47246X+126=X+69=X+6=X+59=231(0.5+X)+X=9.8÷22(X+X +0.5)=9.+X=6X450+5X+X=3200X-0.8X=6X+5.6=9.4X-0.7X=3.615X =33X-8=1618(X-2)=X=300-4X12X-8X=4.891÷X =1.37(X-2)=2X+37X+5.3=7.41.2X=81.6X+8.3=10.73X+9=273X÷5=4.830÷X+25=851.4×8-2X=66X-12.8×3=0.-3X=170X+2X+18=786X-3X=181.8X=0.97248-27+5X=31(200-X)÷5=30X÷0.756=9010.5+X+21=563(X+0.5)=210.273÷X=0.359X-40=50.1(X+6)=3.3×0.40.5X+8=43(X-140)÷70=4X÷5+9=214(X-5.6)=1.61.5X+18=3X7(6.5+X)=87.5(27.5-3.5)÷X=42(X+X+0.5)=9.8X-0.7X=3.612X-8X=4.891÷X =1.33X+9=2730÷X+25=857.5*2X=15X+8.3=10.78(X-2) =2701.2X=81.615X =37X+5.3=7.46X-12.8×3=0.06X+5.6=9.43X-8=163X÷5=4.8410-3X=1701.4×8-2X=63(X+0.5)=210.5X+8=436X-3X=181.5X+18=3X5×3-X÷2=8 9X-40=5X+2X+18=784(X-5.6)=1.60.273÷X=0.35X÷5+9=21(200-X) ÷5=307(6.5+X)=87.51.8X=0.972X÷0.756=9048-27+5X=3110.5+X+21=56(X-140)÷70=40.1(X+6)=3.3×0.4(27.5-3.5)÷X=4X+19.8=25.85.6X=33.69.8-X=3.875.6÷X=12.65X+12.5=32.35(X+8)=102X+3X+10=703.5-5X=20.3×7+4X=12.520-9X=1.2×6.25(X-3) ÷2=7.52X-20=43X+6=183(X+3)=50-X+35X+15=60X÷1.5-1.25=0.754X-1.3×6=2.66X+12.8=15.8150×2+3X=6902(2.8+X)=10.413.2X+9X=33.33X=X+100X+4.8=7.26X+18=483(X+2.1)=1 0.512X-9X=8.742X+25X=1349X+4×2.5=915X-45=10013(X+5)=1691.5(X+1.6)=3.64.2 X+2.5X=1341.2X-0.5X=6.32X-97=34.22(X-3)=5.810.5X+6.5X=5123.4=2X=563.4X-48=26.865X+7=4289X-43X=9.24X-X=48.64.5X-X=28X-5.7=2.155X-2X=183X+0.7=53.5×2=4.2+X16.9÷X=0. 31.8 +6X=5423X-14X=1426×1.5=2X+100.5×16-16×0.2=4X139.25-X=0.403 23X=14X+14X+14X=653-5X=806.7X-60.3=6.79+4X =402X+8=163X+7=283X-8=302X+16=196X-6=03X-7=266X+6=125X+8=195X+6=119X-X=163X-3=114-6X=82X-8=1024X+X=505X-3X=415+6X=275-8X=47X+8=159-2X=14+5X=910-X=88-4X=68-7X=19X=188X+9=176X-7=12X-30=124X-18=139+6X=147X-9=86X-21=215X+9=112X+9=17X-56=16X-3=66-2X=11X+4+8=237X-12=8X-5.7=2.155X-2X=183X 0.7=5 16.9÷X=0.36.7X-60.3=6.79.4X-0.4X=16.23.5×2=4.2 X26×1.5= 2X9.25-X=0.403X÷0.5=2.63-5X=801.8-6X=549+4X=400.2X-0.4+0.5=3.712-4X=2012X＋34X=4618X-14X=1223 X-5×14=1412＋34X=5622-14X=12X-0.8X=612x-8x=4.82、小数一步加、减法使用题1、一本数学读物6.25元，一本语文读物5.86元。
五年级上册数学解方程和计算专题
班级：姓名：得分：一、求加数或求因数的方程7+x=19 x+120=176 58+x=90x+150=290 79.4+x=95.5 2x+55=129 7 x=63 x × 9=4.5 4.4x=444x × 4.5=90 x × 5=100 6.2x=124二、求被减数或求被除数的方程x－6=19 x－3.3=8.9 x－25.8=95.4x－54.3=100 x－77=275 x－77=144班级：姓名：得分：一、求被减数或求被除数的方程x ÷7=9 x÷4.4=10 x÷78=10.5x÷2.5=100 x÷3=33.3 x÷2.2=8二、求减数或除数的方程9－x=4.5 73.2－x=52.5 87－x=22 66－x=32.3 77－x=21.9 99－x=61.9 3.3÷x=0.3 8.8÷x=4.4 9÷x=0.03 7÷x=0.001 56÷x=5 39÷x=3班级：姓名：得分：一、解方程：x+ 0.5x=6 x－0.2x=32 1.3x+x=26 3X+5X=48 14X-8X=12 6*5+2X=44 20X-50=50 28+6X=88 32-22X=10 24-3X=3 10X *（5+1）=60 99X=100-X X+3=18 X-6=12 56-2X=20 x+32=763x+6=18 16+8x=40 2x-8=8 4x-3*9=298x-3x=105 x-6*5=42 x+5=7 2x+3=10班级：姓名：得分：一、解方程。
12x-9x=9 6x+18=48 56x-50x=30 5x=1578 -5x=28 32y-29=3 5x+5=15 89x-9=80 100-20x=20 55x-25x=60 76y-75=1 23y-23=23 4x-20=0 80y+20=100 53x-90=16 2x+9x=11 12y-12=24 80+5x=100 7x-8=6 65x+35=100 19y+y=40 25-5x=15 79y+y=80 42x+28x=140解方程专项训练题五班级：姓名：得分：一、解方程。
五年级解方程 小数和分数计算题
五年级解方程小数和分数计算题2(X+X+0.5)=9.825000+x=6x3200=450+5X+XX-0.8X=612x-8x=4.87.5*2X=151.2x=81.6 x+5.6=9.4 x-0.7x=3.6X+8.3=10.7 15x= 33x —8= 167(x-2)=2x+3 3x+9=2718(x-2)=270 12x=300-4x 7x+5.3=7.4 3x 吒=4.8 30次+25=851.4 >8-2x=6 6X-12.8X3=0.06 410-3x=170 3(x+0.5)=21 0.5x+8=43 6x-3x=18 1.5x+18=3x5 X3-x 吃=80.273 次=0.351.8x=0.972x -^0.756=909x-40=5x -^5+9=2148-27+5x=3110.5+X+21=56x+2x+18=78 (200-x)七=30(x-140) £0=40.1(x+6)=3.3 >0.4 4(x-5.6)=1.67(6.5+x)=87.5(27.5-3.5) *4 x+19.8=25.8 5.6x=33.69.8-x=3.8 75.6 *12.65x+12.5=32.3 5(x+8)=102x+3x+10=703(x+3)=50-x+3 5x+15=603.5-5x=20.3X7+4x=12.5x *1.5-1.25=0.75 4x-1.3 0=2.620-9x=1.2 0.25 6x+12.8=15.8 150>2+3x=690 2x-20=43x+6=182(2.8+x)=10.4 (x-3)吃=7.513.2x+9x=33.3 3x=x+100x+4.8=7.26x+18=483(x+2.1)=10.5 12x-9x=8.713(x+5)=1692x-97=34.2 3.4x-48=26.8 42x+25x=134 1.5(x+1.6)=3.6 2(x-3)=5.865x+7=429x+4>2.5 = 914.2x+2.5x = 134 10.5x+6.5x=5189x-43x=9.25x-45=1001.2x-0.5x=6.3 23.4=2x=564x-x=48.6X-5.7=2.15155X-2X=183X+0.7=53.5 >2=4.2+x26X1.5=2x+10.5 X16—16X).2=4xX=0.40316.9 *0.323x=14x+ 14 x+14x=653 —5x =801.8+6x = 54 6.7x —60.3 = 6.7402x+8=16 23x-14x=14 x+7x=89x-3x=66x-8=45x+x=9x-8=6x 4/5x=20 2x-6=12 7x+7=14 6x-6=0 5x+6=11 2x-8=10x-5/6=7 3x+7=28 3x-7=26 9x-x=16 24x+x=50 6/7x-8=46x+6=12 3x-3=15x-3x=4 2x+16=19 5x+8=19 14-6x=85-8x=4 7x+8=15 9-2x=1 4+5x=9 10-x=8 8x+9=17x+9x=4+7 2x+9=17 8-4x=66x-7=12 7x-9=8x-56=1x-30=12 6x-21=21 6x-3=69x=184x-18=13 5x+9=11x+4+8=237x-12=8X-5.7=2.15 155X-2X=18 3X0.7=53.5 >2=4.2xx0.5 X16—16X).2=4x9.25 —X=0.40316.9 *0.3 XP.5=2.63 —5x = 801.8-6x = 546.7x —60.3 = 6.79 + 4x = 400.2x —0.4 + 0.5 = 3.7 9.4x —0.4x = 16.212 —4x= 201/3x + 5/6x = 1.412x+ 34x=118x—14x=12 23x—5X14=14 12+34x=56 22—14x=12 (0.5+x)+x=9.8 吃2(X+X+0.5)=9.8 25000+x=6x3200=450+5X+X X-0.8X=612x-8x=4.87.5*2X=151.2x=81.6x+5.6=9.4x-0.7x=3.6X+8.3=10.7 3x —8= 167(x-2)=2x+3 3x+9=2718(x-2)=27012x=300-4x 7x+5.3=7.4 3x 吒=4.8 30次+25=85 1.4 >8-2x=6 6X-12.8X3=0.06 410-3x=1700.5x+8=436x-3x=181.5x+18=3x5 X3-x 吃=80.273 次=0.351.8x=0.9729x-40=5x -^5+9=2148-27+5x=31 10.5+X+21=5 6x+2x+18=78 (200-x)七=30(x-140) £0=40.1(x+6)=3.3 >0.4 4(x-5.6)=1.67(6.5+x)=87.5 (27.5-3.5) *44x=4402.1x=16.818(x-2)=27018(x-2)=27012x=300-4x7x+5.3=7.40.1(x+6)=3.3 >0.4 4(x-5.6)=1.67(6.5+x)=87.5(27.5-3.5)(1) 甲数是3.5，比乙数多a,乙数是 _—甲、乙两数的和是________________ 。
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学习资料收集于网络，仅供学习和参考,如有侵权，请联系网站删除 解方程练习题
7+5x=19 4x+120=176 58+x=90 x+150=290
79.4+4x=95.5 2x+55=129 7 x=63 x × 9=4.5
4.4x=44 x × 4.5=90 x × 5=100 6.2x=124
54.4=100 2x－25.8=95.4 6x － －8x6=19 4x－3.3=8.9
5x 3x ÷7=9 4x÷ －76=144 4.4=10 －8x77=275
x÷ 2.5=100 x÷78=10.5 2.2=8 x÷ x÷3=33.3
－93x=4.5 87－ －663x=32.4 2x=22 8x=52.5 73.2 － x=4.4 3.3÷ －772x=21.9 x=0.3 8.8÷3x=61.9 99 －
5) x)=58 (1056÷－ x=0.03 9÷ (x x=0.001 7÷ 39÷－=3
(x+0.5)=1.5 －(x3×4)=46 3=16 5=15 +x) ÷８ ( 15÷ 5) ÷＋(x
12x+8x=40 x+ 0.5x=6 x=16.9 ＋12x 0.8x=40 －1.2x 学习资料．
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x－0.2x=32 1.3x+x=26 3X+5X=48 14X-8X=12
6×5+2X=44 20X-50=50 28+6X=88 32-22X=10
24-3X=3 10X ×0.5=60 99X=100-X 4X+3=18 56-2X=20 4X-6=12 4y+2=6 5x+32=76
9=29 4x-3× 2x-8=8 16+8x=40 3x+6=18
2x+3=10 、 5=42 x - 6× 8x+5=7 8x-3x=105
8+2x=36 12x+8x=4.8 X-0.8X=6 7(x-2)=49 4× x÷ (x-2)÷3=7 5x=31 5=30 (200-x)÷ 5+9=21 －48
＝－3x816 3x+9=27 5.3+7x=7.4 3x÷ 5=4.8
5×3 - 2x=8 40 - 8x=5 5=215 2x÷ 4x+25=100
x=19 0.11=3 ＋1.7x3.81÷ 3x=3.9 －4.8 0.13x=169 学习资料． 如有侵权，请联系网站删除学习资料收集于网络，仅供学习和参考, 计算题30.8÷[14
－(9.85＋1.07)] [60－(9.5＋28.9)]÷0.18 2.881÷0.43－0.24×3.5
20×[(2.44－1.8)÷0.4＋0.15] 28-(3.4+1.25×2.4) 2.55×7.1+2.45×7.1
777×9+1111×3 0.8×〔15.5-(3.21+5.79)〕 （31.8+3.2×4）÷5
0.64×25×7.8+2.2 4÷31.5×(6+3) 2÷2.5+2.5÷2
6 5180－705× 0.9 64.8÷194－1.8× 36.72÷ 4.25×9.9
2.5×2.4 24÷－0.8 671×15-974 (4121+2389)÷7 3.416÷ 35（0.016× 469×12+1492 ） (3213-3189) 405× 0.2-0.62 5.67× 1.2] 6.76)÷－[(100.8× 2.3 6.1×19.4× 学习资料． 学习资料收集于网络，仅供学习和参考,如有侵权，请联系网站删除
18.1×0.92+3.93 0.0430.24+0.875 0.4×0.7×0.25
0.75×102 100-56.23 0.78+5.436+1 4.07×0.86+9.12.5
5.4÷1.8+240×1.5 9000÷72×(1.25×0.7×8) 61-(1.25+2.5×0.7)
[(10-0.8)+9.85]-2÷0.125 3.14x14 + 3.14x2 200.96÷6.28÷4
1231.68+5268.32-2569 123+456-52x8 789+456-78
276+228+354+212 (375+1034)+(966+125) (2130+783+270)+1017 99+999+9999+99999 7755－(2187+755) 3065－738－262 －1250
125×32×25 (13×125)×(3×8) (12+24+80)×50 25×32×125 学习资料． 学习资料收集于网络，仅供学习和参考,如有侵权，请联系网站删除
32×(25+125) 178×101－178 84×36+64×84 75×99+2×75
83×102－83×2 123×18－123×3+85×123 50×(34×4)×3 25×（24+16）
178×99+178 79×42+79+79×57 7300÷25÷4 8100÷4÷75
158+262+138 375+219+381+225 5001－247－1021－232
（181+2564）+2719 378+44+114+242+222 276+228+353+219 (375+1034)+(966+125) 7755－(2187+755) 3065－738－1065
2357－183－317－357 2365－1086－214 79×42+79+79×57
7300÷25÷4 8100÷4÷75 2356－（1356－721） 1235－（1780－1665） 学习资料． 学习资料收集于网络，仅供学习和参考,如有侵权，请联系网站删除
31×870+13×310 4×(25×65+25×25) 2.73 ＋ 0.89 ＋ 1.27
4.37 ＋ 0.28 ＋ 1.63 ＋ 5.72 10 － 0.432 － 2.568 9.3 － 5.26 － 2.74
13.4－（3.4＋5.2） 14.9－（5.2＋4.9） 18.32 － 5.47 － 4.32
17.29 － 5.28 － 6.29 25 × 6.8 × 0.04 0.25 × 32 × 0.125 6.4 × 1.25 × 12.5 3.28 × 5.7 ＋ 6.72 × 5.7 2.1 × 99 ＋ 2.1
1.7 × 9.9 ＋ 0.17 23 × 0.1 ＋ 2.3 × 9.9 0.18 ＋4.26 －0.18 ＋4.26
0.58 ×1.3 ÷ 0.58 ×1.3 7.3 ÷4 ＋ 2.7 × 0.25 3.75 × 0.5 － 2.75 ÷ 2
5.26 × 0.125 ＋ 2.74 ÷ 8 9.5 ÷（1.9 × 8） 12.8 ÷ （0.4 × 1.6） 学习资料． 学习资料收集于网络，仅供学习和参考,如有侵权，请联系网站删除
930 ÷ 0.6 ÷5 63.4 ÷ 2.5 ÷ 0.4 （7.7 ＋ 1.54）÷ 0.7 6.9＋4.8＋3.1
（11.7 ＋ 9.9）÷ 0.9 15.89＋(6.75－5.89) 7.85＋2.34－0.85＋4.66
35.6－1.8－15.6－7.2 13.75－(3.75＋6.48) 47.8－7.45+2.55 66.86－8.66－1.34 0.25×16.2×4 0. 25×32 ×0.125 2 .5 ×(4 +0.4)
(1.25－0.125)×8 56.5×9.9＋56.5 3.83×4.56＋3.83×5.44
5.4×11-5.4 7.09×10.8－0.8×7.09 3.65×4.7－36.5×0.37
13.7×0.25－3.7÷4 10.7×16.1-1.1×10.7 +10.7 ×5 3.9÷（1.3×5）
63.4÷2.5÷0.4 （7.7＋1.4）÷0.7 30.8÷[14－(9.85＋1.07)] 学习资料． 学习资料收集于网络，仅供学习和参考,如有侵权，请联系网站删除
[60－(9.5＋28.9)]÷0.18 2.881÷0.43－0.24×3.5 20×[(2.44－1.8)÷0.4＋0.15]
28-(3.4+1.25×2.4) 2.55×7.1+2.45×7.1 0.8×〔15.5-(3.21+5.79)〕 （31.8+3.2×4）÷5 31.5×4÷(6+3) 0.64×25×7.8+2.2
36.72÷4.25×9.9 － 2.5+2.5÷2 19464.8÷1.8×0.9 2÷ 671× 15-974 0.8 24÷ 5180－705×6 2.4－2.5×
）3.416÷ (3213-3189) 405× （0.016×35 12+1492 469×
－0.8×[(106.76)÷5.67× 2.3 6.1×19.4× 1.2] 0.2-0.62
0.92+3.93 18.1× 0.25 0.7× 0.4× 102 100-56.23 0.75× 学习资料．
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学习资料．