小学五年级数学计算练习题合集

1、五年级计算专项练习题（五）、口算题4 + 0.5=0.6 X1.2=10 X0.01=30.2-3.02=0.1 X 0.5=二、简便计算263+ 851637.28+0.94+2.72+0.0647814951三、解方程 9.2x+1.5x=32.1 4x+3X0.7 =6.5四、列竖式计算(带的要验算)0.27 X1.3=2.7 +0.45=五、考考你：7.8 X 99+3.9X2五年级计算专项练习题（六）一、口算题9X0.4=4.5 X0.1=15 X0.4=二、简便计算7.3 X99(1.25+2.5)X8三、解方程2 (x-0.5) =1.6四、列竖式计算(带的要验算)1.05X2.

2、4=11.288.89+0.1=0 X 25.4=9.42 X 1094.2 X0.9+ 1.6= 0.99+1.8=五、考考你：(1.9 1.9X0.9) + (3.82.8)X0.5=15-5.7=2.4 X 1.5+3.6+1.5三、解方程 75.99.8 +4X=66.14(16+ X) X 8=624五年级计算专项练习题（七）一、直接写得数 1.6 +0.08= 0.39 +3.9= 1.2-0.02= 3.7+4.2= 1.8脱式计算(4.5 X 9.9+5.5 X 9.9) X 2.8 1.58+ 20 (5.4 +6.7)四、文字题 30减去9.5与4.7的和，所得的差除以0.

3、79,商是多少?一个数的3倍减去16.2 ,得到的差是25.8 ,这个数是多少?五、简算3.4 X 12.5+6.6 X 12.54.3X 9.9五年级计算专项练习题(八)一、直接写得数2.5 X 0.4= 2.5 X0=25+10= 2.5 +2.5= 0 +2.5=3.5+3.5=二、脱式计算3.61 +(7.2 5.3) X250.27 X 99+0.27三、解方程2X- 2.8 +1.2=4.35.5X 1.3X=12.6 四、文字题一个数的4倍与这个数的一半的和是22.5 ,求这个数。7.5与1.6的积减去什么数的4倍等于2.4。10.7减去0.2乘4.58的积，差是多少？小学五年级

4、数学计算练习题集、口算练习4.7+2.3=4.5X2=6.9-2.5=7.2 X 0.8= 6 X 3.4=0.620.32=1.4 X 0.5=0.75 X100=0.02 X 0.5= 6 +0.3=6.3+ 7=5.6 + 100=0.75+0.25=0.125 X8=4.8 +0.3=0.96+ 2=0.56+28=0.36+0.4=0.64 + 0.8=0.72 + 3.6=3.6+ 24=0.8 X1.1 =7.2+12.8=46.7-3.8=1.64+41 =10+20=24+15=8.65X10=35X0.6=3.8X0.01 =4.95 X1000= 6.9X0.1 =0.4

5、 X 0.5=2.4+ 0.8=10.8+9=9.6+ 0.8=0.108+2=4.95+0.9=65+0.1 =0.325X 100=2.5 X8=0.56+ 0.7=0.125 X 4=3.28X0.1 =3.9+ 0.13=7.2X0.1 =0.01 X0.1 =0.25X0.4=1.6+0.8=1 + 2.5=1.25 X 0.8=3.2+ 0.04=+ 1.7=0.22X 102=9.6 +0.8=X 0.24=4.5-0.05=3.9+ 0.1316.5 +0.5=X0.12=24X 0.5=4.8X0.5=2.84.2=0.84+ 2.1 =+ 0.25=7.8+ 0.01 =5

6、.4 +0.6=3.2+ 5=X 0.62=0.56+ 0.8=7.42.8=0.18+ 0.2=0.16+ 8=4.5X 0.02=+ 7.2=1.2 X 30=0.012X 0.2= 0.3 X 0.3=9 + 6=3.6+ 0.12=7.8+ 0.6=+ 5=4.5+ 5=0.3+ 0.6=0.96+ 0.2=10.5X0.4=7.3+ 0.27=8X0.125=0.54+ 0.6=0.61+ 0.39=0.56 +28=10+20=4.08+ 0.4=11- 9.4=0.8X0.11=0.72+ 12.8=5.6+0.01=2.3 X100=0.75X100=0.108+2=16-5.

7、07=10.8+9=4.2 X0.4=0.7+0.8=0.72X6=12+0.5=5.2X0.4=12.2+ 0.2=5.6+ 100=0.41+3.7=0.02X 0.5=7.2 -0.8=0.75 +0.25=1.4 X0.5=2.5 X16=840.108-0.21 =+ 2=1.75+32.5=16一5.07=5.2+ 13=1.64 +41=1.02 X0.2=0.26X0.3=8.4 X 0.02=12.6+0.03=0.34 + 17=1.29 X 6=8.71+0.1 =8.08+0.4=0.8 X 0.05=21+0.21=0.8X0.13=0.5X2.2=1.24+4=3.

8、27十0.63= 5.027.2 + 1.8=X0.3=0.30.7+0.35=X 0.5=0.726.4+4=+ 1.44=0.48+0.04=1.25+2.5=5.5+ 55=16.8+ 8=0.54+2.2=3.5-0.05=2 + 0.02=0.25义 40=1.5X0.6=0.32+0.8=12.25+ 0.5=73.5 X0.1 =46.5+52.5=0.45X 102=0.25X88=2.5 义101=4.7+2.3=4.5X2=6.92.5=7.2义0.8=6X3.4= 0.62 -0.32=1.4 X0.5=0.75X 100=0.02X0.5=3.6+0.3=6.3+ 7=

9、5.6+100=0.75+ 0.25=0.125 X8=4.8+0.3=0.96+ 2=0.56+ 28=0.36+ 0.4=0.64+0.8=0.72+ 3.6=3.6+24=0.8X 1.1 =7.2+12.8=46.7 3.8=12.8+ 4=5.2+ 13=12.5 +5=1.64+41 =10+ 20=24+ 15=8.65X10=0.35 X 0.6=3.08X0.01=4.95X1000=6.9 X0.1 =0.4 X 0.5=2.4 +0.8=10.8-9=9.6+0.8=0.108+2=4.95 -0.9=9.65+0.1 =3.28X0.1=3.9+0.13=7.2 X0.

10、1 =0.01X0.1 =0.25 X0.4= 1.6+ 0.8=1+2.5=1.25 X 0.8=3.2+0.04=0+1.7=0.22 X102=9.6+0.8=5 X 0.24=4.5-0.05=3.9+0.1316.5+0.5=5 X 0.12=24 X 0.5=4.8 义0.5=2.8+4.2=0.84+2.1=5+0.25= 7.8+0.01 =5.4 +0.6=3.2+5=7 X 0.62=0.56+0.8=7.42.8=0.18+0.2=0.16+8=4.5 X 0.02=8+7.2=1.2X30=0.012 X0.2= 1.3 X0.3=9+6=3.6+0.12=7.8+0.

11、6=2+5=4.5+5=0.3+0.6=0.96 +0.2=10.5 X0.4=7.3+0.27=8 X 0.125=0.54+0.6=0.61+0.39=0.56+28=10+20=4.08+0.4=11-9.4=0.8X 0.11=0.72+12.8= 5.6+0.01=2.3 义100=0. 75 X100=0.108+2=10.8+9=0.7+0.8= 16 5.07=4.2 X0.4=0.72 X6=12+0.5=5.2X 0.4=12.2 +0.2=5.6+100=0.41+3.7=0.02 X 0.5=7.2-0.8=1.4 X0.5=84+0.21=0.75+0.25=2.5

12、X 16=0.108+2=1.75 +32.5=16- 5.07=5.2+13=1.64+41=1.02 X0.2=0.26X0.3=8.4 X 0.02=1.29 X6=0.8 义0.05=12.6+0.03=8.71+0.1=21+0.21=0.8 X0.13=0.34 +17=8.08+0.4=0.5 X 2.2=1.24+4=3.27+0.63=8 X1.25=5.6+3.5=4.2+0.7+6=2.14 -0.9=0.5+7.6=240+48=4200+300=0.75 -0.38=396+99=90 X 30=20 X 35=1-0.2=3-2.25=1.57+3.43=286+1

13、99=18.54 -9.9=36 X 99=2.4+2=48+0.6=96 + 3=0.24+0.2=4.8+6=0.96+0.03=2.4 +0.2=4.8+0.6=9.6+0.3=3.24+24=3.24 +0.24=3.24+ 2.4=2.4+ 2=48+ 0.6=2.4 +0.2=4.8+ 0.6=9.6+ 0.3=25.8+ 6=0.9 X 0.8=7.5x-3x=a+3a+7a=1.05X100=1+0.5=0.96+ 3=1.47+ 0.7=5.4+ 6=3.215X100=0.8 X 10=4.08X100=1.1X0.2 =0.6 X 0.8 =3X0.9=2.5X0.4=3

14、.6X0.4=12.5 X8=50X 0.04=80X0.3 =1.1x 9=12 + 0.3=2.87+ 0.7 =13+ 4=0.96+ 0.3 =1.5 X0.4 =7+ 0.25 =2.5X0.7 X0.8= 8 -2.5 =16+1.6 =5.6X1.01 =0.36+ 0.64=64.32+ 16=4.2 +0.1 =72.8+ 0.8 =8.4+ 4.2 =13.8+ 9.9 =2.4 X2.5 =0.05X0.8 =2.56 0.37 =12X 2.5 =1.23+ 1.6=；3.5+ 3.5 X3 =19.6-2=8.8 +2.2=0.75X4=0.5X0.8=8.4X0.2

15、=1.6 X0.2 =7.2X0.3=2.8X0.3 =0.9+ 0.15=1.8 X0.4=5.5+ 0.55=0.08X100=2.2+ 0.11 =5.46 +4.54=12.5X0.8=0.35X0.3=1.4X 5=2.8 X4=19.6+ 4=22.5X 4=0.396+ 1.2=5.4+6=128+ 0.4=78+ 0.6=9.6+ 3.2=65 + 0.05=54+ 0.12=32+ 0.4=36+ 0.18=X3 =3.242 + 0.003=78-10.06=45+ 0.005=81+ 0.03=18.63 +0.03= 9.5X99=13.5X0.98=0.1-0.047

16、=0.29 +2.9=3.4X0.2=0.57+ 19=63+124+76=7.09 X10.8=0.8义 7.09=9.5X 101 =3.8X 10.1 =7.69 X101 =3.8X10.1 =0.125X72=7X19+7=22.8 +3=5.98+ 0.23=19.76+ 5.2=3.81+ 7=32 + 42=246.4+ 13=2.17+ 0.7=0.4+ 0.01 =5.3+6.7=5.4-3.6-1.4=30X0.01 =15+ 1.5=12.9-8.5=7.2X0.4=2.8X 1.4=8+2-8+2=286+198=314-202=526+301=223-99=0.45

17、 X2.5 =0.8X1.25 =0.3X3.6 =0.3X0.3 =10X0.07 =0.3X1.4 =0.05X7=0.92X0.4 =0.2 X 0.26 =0.14X4=0.02X0.1 =1.2X0.3=0.2 义 0.4 =8.2+ 1.8 =100 35.22 =2.3X4=2.5 义 0.4 =2.4X5 =0.22X4=3.25X 0.5=0.90.52 =3.99X 1 =0 X3.52 =12.5X8 =3. 7+0.63= 0.04X25=12.5X0.8 =2.5X0.8 =12.5 X4 =1.5X4 =1.4X5 =0.18X5 =1.6 X0.5 =13.7+

18、2.93；=4.5 X0.9 =5.4X 6=20X0.05 =50X0.02 =0.36X2.5 =250X0.4 =2.14 -0.9=0.5+7.6=240+ 48=4200+ 300=0.75 -0.38=396+99=90X30=20X35=1-0.2=3-2.25=1.57+3.43=286+199=18.54 -9.9=36X99=2.4+ 2=48+ 0.6=96 + 3=0.24+ 0.2=4.8+ 6=0.96+ 0.03=2.4 +0.2=4.8+ 0.6=9.6+ 0.3=3.24+ 24=3.24 +0.24=3.24+ 2.4=2.4+ 2=48+ 0.6=96 +

19、 3=0.24+ 0.2=4.8+ 6=0.96+ 0.03=2.4 +0.2=4.8+ 0.6=9.6+ 0.3=25.8+ 6=22.8 +3=5.98+ 0.23=19.76+ 5.2=3.81+ 7=32 + 42=246.4+ 13=2.17+ 0.7=0.4+ 0.01 =5.3+6.7=5.4-3.6-1.4=30X0.01 =15+ 1.5=12.9-8.5=7.2X0.4=2.8X 1.4=8+2-8+2=286+198=314-202=526+301=223-99=0.45 X2.5 =0.8X1.25 =0.3X3.6 =0.3X0.3 =0.90.52 =3.99X 1

20、 =0X3.52 =12.5X8 =3.5 +73+6.53.7+ 0.25+0.752.73-1.98简算2.5 X 13X4137X1.25 X83.9X 1.8 +6.1 X1.87.3 X 993.8X1012.5X3.2 X1.2525X2.4 X5003.5X 99+3.59.8X101-9.838.5 - (17.3+8.5)32.7+ 998561-8.6-11.496X1.258.8X1.253.6X2503.7 X 65+2.5 X65+65X3.817.8X 32+17.8 X 7217.8 X438X3.8 +3.8 X62128.6+ 2972.5+ 7.5 2.5

21、+7.59X12+9X1272X1250.32X2.5 义 1.2517X23 7X23672 36+64487-187-139- 614.4 义 250127+ 133+ 184+ 240560X12.5(40+ 8) X2.51.25X (8+80)3.6X ( 100+50)2.4 X (0.2+10)8.6X ( 1000 2)1.5X (40 8)3.6 X 34+3.6 X660.75X 2.3 +0.25 X 2.36.3X 43+57X6.39.3 X6+ 9.3 X43.25X113-3.25 X 130.28X 188X0.287.8 义 10269X 10.256X 10

22、.152X1.02125X8.125X4.13.1 X990.42X9829X0.9985X9.812.5X7925X3.98.3 + 8.3 X995.6+ 5.6 X990.99X99+ 0.997.5 X 101-7.512.5X81-12.50.91X31三、脱式计算5.4 -2.5 -1.4=2.5X 1.25 X 0.32=12-6.2 -3.8=(180+20) +5=1.7+0.43+3.3=75X25X4=18.6 -3.47 -0.53=72 X101-72=235X 2835X28=2.6 义 78+78X 7.4=7.26-(5.26-1.5)=8X(2.5 +0.25

23、)=1.25 X0.8 X0.5 =(1.5+0.25) X4 =0.12X0.5 X0.16 =7.28 X 99+7.28=4.3X 50X0.2=5436+ 18 =(25+4)义 4=(1.2+ 1.8) X4.5=1025 768+32=645-45 X 12=10-2.87-7.13=0.96+9.6X9.9=401X 19+284=640+128X45=1.25X 8+1.25=5.37 义 0+4.63=2.5x 7.1X4=16.12X99+ 16.12=5.0-0.9 +0.9=7.28义 99+7.28=4.3X 50X0.2=64-2.64 X0.5=3.94+34.3

24、义 0.2=8.9X 1.1 X4.7=2.7 X5.4 X3.9=3.6X 9.85-5.46=8.05X3.4+7.6=6.58 X4.5 X0.9=2.8X 0.5+1.58=32+ 4.9 -0.9=4.8 -4.8 X0.5=(1.25-0.125) X8=4.8X 100.1 =56.5 X 99+56.5=4.85+0.35+1.4=0.87X 3.16+4.64=40.5 +0.81 X0.18=4.8 X (15 + 2.4)=2.13X 0X8257=0.916.81+6.81 X99=0.250.25 X 39+0.25=(80.25 X185X40=6.85.4+ (0

25、.51 +0.17)=0.78用递等式计算。(1) 2.6+1.4 X 1.5 1.530.8 + 14-(9.85+1.07)60-(9.5+28.9)+0.182.881 +0.43-0.24 X 3.520 X (2.44-1.8)+0.4+0.1528-(3.4+1.25 X2.4)2.55 X 7.1+2.45 X 7.1X185X 40=X 5.27) X 1.25=X 0.75+ 0.5=X 99+0.78=(2)2.5 X (3.8 X 0.04)=6.81+6.81 X99=3.75+0.125 -2.75=5.4 X (7.26 +6.05)=(37 3.6+4.8) +1

26、2.5(31.8+3.2 X4) + 531.5 X4+(6+3)0.64 X25X 7.8+2.22 + 2.5+2.5 +236.25 + 4.25 X 9.95180- 705X624+2.4 -2.5 X0.80.8 X 15.5-(3.21+5.79)五年级下册数学计算练习题1. 37X0.3 0.56 X0.04 3.3 X4.6 0.29 X 0.07 6.5 X8.4 2.6 X1.082. 0.86 X7 3.5 X 16 12.5 X42 7.3 X 12 5.35 X23 4.3 X 123. 25.2 +6 34.5 +15 7.83 +9 4.08 +8 14.21

27、+7 6.3 +144. 72 15 34.5 +15 4.2 +3 9.1 +14 43.5 +29 28.6 +115. 1.8 X23 0.37 X0.4 1.06 X 25 7 X 0.88 0.6 X 0.39 27 X 0.436. 0.049 X45 7.06 X2.4 72 X 0.81+10.47.06 X2.4-5.70.034 X 0.5 X 0.6 102 X 0.457. 4.8 X0.252.33 X0.5 X41.5 X1051.2 X2.5+0.8 X2.520.34 X0.15 3.5 X1038. 0.25 X 4.78 X40.65 X 201 15 X

28、0.4 X2527X3.7+3.7 X730.125 X 8.8 8.4 X 99+8.49. 0.125 X1.25 X 0.4 X8(13.7-6.75) X8.44.89 X (5.2+6.4)8.9 X1.2-7.5 72-0.81 X410. 91.2 +5.7 21 +2.4 741 +0.13 5.6 +3.5 6.3 +0.09 0.028 +0.711. 3.645212.3+3 4.52+4 68.4 +9 28.98+1845.5+6512. 8.4+1249.6+16 9.24+42 6.44 +14 16.9+2632.1+1513. 1.35+270.672+ 16

29、 261+45 5.04 +6 76.5+450.84+2814. 7.65 +0.85 12.6 +0.28 62.4 +2.60.544 +0.16 11.7 +2.6 1.44 +1.815. 19.4 -1226.37+3145.5+385.98 +0.23 19.7616. 21 +1.48.8418+2.41.817. 27.3 +1.30.273+ 5.26.21+0.03+ 1.718.+24+ 0.2413.5+30+ 0.0130.19 X 1.218. 1.25 X4X2.5 X8 9.9 X9.810.42+0.064.2 X5.150.93X210.027+9.9 X

30、0.2715.8 X69.3-68.3 X15.8 2.08+0.26 78.6 +0.619. 0.675 +2.79.830.4 +0.325.120. 0.384 +0.2418.27.86 + 3.514.3221、0.98+40.0984.28 +40.38422、51 +0.34 0.3636+ 0.2813.6+0.04+ 0.8524+0.032+ 0.6551+0.34+ 2.728+18+ 41.02+5+ 0.2418.2+0.65+ 99.6+0.0329、6.4 +80 4.25 +0.05 64.4 +14 45.5 +65 4.20 +15 0.942 +420.

31、4 +0.02 6.8+0.213.6+ 0.0423、9.8 +0.280.85+ 2524+0.03251+855.1+8.52.56+ 0.32+ 0.324、 5.04 +0.24 0.504+2.462.15.13 +0.27 4.6825、32.4 + 2410.8 +4526、3.36 +841.56 2427、4.59 + 0.3435.35 +7+ 1.24.95+332. 884+ 4831.2+2413.5+270.672+160.96+82.24+1.480.5+3.55.40+91.884+ 4261-451.4+0.070.92+828、26.4 + 6 26.7+

32、 6 3.21 +15 7.83+ 58 36.4 +8 0.94 +530、2.34 +9 23.4 +9 0.64 +16 6.4 +16 2.99 +13 29.9 +1.331、2.9 +0.13 56 +4 5.6 +4 68.4 +9 1.26 +3 45.2 +432、4.96 +162.898+1.8 18.9+5047.1+0.255.1+2.20.598+2.333、1.976+0.521.08+0.450.21+148.84 +0.170.621+0.03 1.8+0.2434、13.5 + 0.03 27.3+ 1.30.544+ 1.66.24 +261.44+1.8

33、11.7+2.635、12.6 + 0.287.65+0.854.35+2.91.89 +2.713.5+1.52.86+1.136、2.04 2436.4+5.21.56+1.2328+1613.5+271.26+ 1837、24 +151.8+1222.4+478.3 +0.940.8+85.4+0.638、63 14072+1.5 35.56+0.712.36 +0.4 18.27+9 24.48 +839、12.9 + 0.31.29+300.129+0.0345.18 +0.9 28.84 +0.4 2.884+0.0440、288.4+40 13.6 +0.04 194.4+544

34、2.92 +14.8 7.5+0.244.24+0.441、3.12 + 0.0418.24+0.06 21.35+0.72.432 +0.0832.5+2.5 49 +1.4解方程1. x +5.2=10.8x+3.2=4.6 x-1.8=4 x-2=15 1.6 x=6.4 x+7=0.32. x +3=2.1 3 x=18 x+0.64=14.14 X+32=76 12- x=43+x=1.53. x+0.3=1.8 3+ x=5.4 x-1.5=4 x-6=7.6 5x=1.5 0.2 x=64. x +1.1=3 x +5=15 2x-20=4 4x-3 X 9=29 2x-7.5=

35、8.5 16+8x=405. 3x+6=18 5x+3=428 1.8x+32=98.6 2x-16=72 2x+30=110 4x+812=44006. (x-3) +2=7.5 8(x-6.2)=41.6 5(x+1.5)=17.52(x-2.6)=8x-0.36x=165.4 x+ x=12.87. 8x-3x=105 13.2x+9x=33.3 6x+9x=1.53(x+2.1)=10.5 12 x-9x=8.7 6x+18=488. x +8=0.4 x-6.5=3.2x+4.8=7.2 3.8+x=6.3 2.5x=14 3.4x-48=26.89. 42x+25x=134 x-7

36、.9=2.6 x +3=1.2 2x-97=34.2 13(x+5)=169 x +1.44=0.410. 3.85+1.5x=6.1 6x-0.9=4.5 x+12=20 X-8=18 6+x=40 x-0.8=2.611. 2.9+x=6 x-7=9.8 x+80=125 3.2+ x=6.6 x-5.3=42.7+x=3.2+1.512. 5x=45 x +6=7 8x=23+41 36x=108 x +20=90 x +9=413. x +1.5=4 x +6=5.4 2.5x=17.5 x +3.2=2.5 x +5=4.2 8.8+x=2014. x +1.8=6 1.2 x=60

37、 4x=38-145x-4=367x+10=242x+4.8=1015. 4x-3.7=8.7 25x-70=80 14+9x=50 8x-4 X 14=0 5x+35- 7=40 2.4 +0.3+6 x=5016. 15x+3.8 X 12=87.6 3x-0.5 X 3=13.5 6x-2x=12.82.8x-5.4 +3=6.6 4.2x+x=104 5x-2x=2.717. x+4x=30 10x-3.5x=52 6(x+15)=2404.8(x-2.5)=19.2 9(x+3.5)=41.4 9(6.4+x)=7219. x+4.7=9.615.6+2x=23.4 4x+2.5X4

38、=268.4x-6x=7.27(x-4.8)=288x-62X4=020. 3x+2.5x=69.30.2x+6=93x-78=723.6x-x=5.85(x-6) =120 24-x=17用递等式计算42、0.75 X 18+0.15 2.07+0.23 +0.45 21.36 +0.8-12.97.28+3.2 +2.5 1.08 X 0.8 +0.272.05+0.82+33.643、44.28 +0.9 +4.1 9.07-22.78+3.46.9+0.3 X15.210.1 X8.79.6+4 + 2.51.25 X1.7 X8+1.744、806.9 + 12.5 +8 8.62+

39、8.62 X 991.25 X6.412.5 X32X0.255.5 X 1020.2 X 8036X 0.545、56.4 X98+56.4X29.28 X 13-9.28 X 4+9.28列方程解应用题1、 育新小学共有108人参加学校科技小组，其中男生人数是女生人数的1.4倍。参加科技小组的男、女生各有多少人？2、 体育比赛中参加跳绳的人数是踢建子人数的 3倍，已知踢建子的人数比跳绳的人数少 20人,跳绳、踢健子各有多少人？3、 某校五年级两个班共植树 385棵，5 (1)班植树棵树是5 (2)班的1.5倍。两班各植树多少棵？4、 一支钢笔比一支圆珠笔贵6.8元。钢笔的价钱是圆珠笔价钱的

40、 4.4倍。钢笔和圆珠笔的价钱各是多少元?5、 学校数学小组的人数是写作小组人数的 1.4倍如果从数学小组调4人到写作小组，两个小组的人数就相等了写作小组和数学小组各有多少人？6、 过年了，妈妈给姐姐和弟弟同样多的压岁钱。姐姐花了 290元买了一套百科全书，弟弟花 了 170元买了一辆滑板车，这时，弟弟的钱数是姐姐的3倍，姐姐和弟弟各得到多少压岁钱？7、 食堂买来一些黄瓜和西红柿，黄瓜的质量是西红柿的1.2倍，黄瓜比西红柿多6.4千克。买来西红柿多少千克？8、 今有鸡、兔共居一笼，已知鸡头和兔头共 35个，鸡腿和兔腿共94只。问：鸡、兔各有多少只？9、 妈妈今年46岁，小倩今年12岁，再过多少

41、年妈妈的年龄是小倩的 3倍？10、 用一根长54厘米的铁丝围成一个长方形，要使长是宽的2倍，围成的长方形的长和宽各是多少？面积是多少？11、 一只麻雀的体重是81克，恰好是蜂鸟的40倍。一只蜂鸟重多少克？12、 一块长方形菜地的面积是180平方米，它的宽是12米，长是多少米？13、 食堂有一批大米，每袋25千克，用去6袋以后，还剩50千克，这个食堂原来有大米多少千克？14、 食堂有200千克大米，每袋25千克，用去一些后，还胜50千克，用去多少袋？ 小明做了 28道习题，小红再做多少道就是小明做的 2倍？15、 幼儿园大班有10个小朋友，现在有60个苹果平均分给大班和小班的小朋友，每个小朋友可分得2个，小班有多少个小朋友？16、 小华买了相同数量的2元和8角的邮票，共用去了 42元，两种邮票各有多少张？17、 学校分配学生宿舍，如果每个房间住 6人，那么有20人没有床位，如果每个房间住8人，则正好住满，学校有多少间学生宿舍？18、 甲、乙两车从相距280千米的两地同时出发，