五年级课前三分钟训练题

1、学习必备欢迎下载五年级计算训练、算0.8X1.1=7.2+12.8=46.73.8=4.7+2.3=4.5X2=6.9-2.5=7.2X0.8=X3.4=0.62-0.32=1.4X0.5=0.75X100=0.02X0.5=3.6+0.3=6.3+7=5.6+100=0.75+0.25=0.125X8=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=12.8+4=5.2+13=12.5+5=10+20=24+15=8.65X10=0.35X0.6=4.95X1000=6.9X0.1=0.4X0.5=2.4+0.8=10.8+9

2、=9.6+0.8=0.325X100=56+0.7=125X4=3.28X0.1=7.2X0.1=0.01X0.1=0.25X0.4=1.6+0.8=+2.5=1.25X0.8=3.2+0.04=0+1.7=(1.2+8.8)X0.4=100-63=0.65+4.35=4.9+0.7=2.87-0.49=530+270=3.5-0.2=4X0.25=25X12=135+0.5=0.51+17=5.2+1.3=1.6X0.4=+5=7.8+3.8=6+2=0.87-0.47=17X40=2.8X0.4=0.32X500=0.65+4.35=3.5X200=4X0.25=0.36+1.54=420

3、+60=2+4.9=3-2.3=3.4-1.2=4.9X0.7=0.4X0.8=100学习必备欢迎下载二、简便计算3.6X2.5+7.5X3,60.125X326,5乂1023.25X99+3.258X25X1.25X164.04X25045.55-(6.82+15.55)3.2X99+3.2489X1014893.6X2.5+7,5X3.64.8X39+61X4.80.125X3234.52-17.87-12.232.5X56+4.5X566.5X1024.57+3.17+3.43+5.834.6X56+48X4.6-4.63.25X99+3.250.125X3.2X2,50.125X723

4、.8X10.18X25X1.25X164.04X25034.52-17.87-12.233.2X99+3.24.8X39+61X4.85X7.1X4(1.91.9X0,9)+(3.82.8)学习必备欢迎下载8.7X2.6+6.4X8.7+8.747.05乂23.7+47.05乂76.312.81-(1.5+7.81)12.25-3.1+0.856.9.5X1012.65X1.7+1.35X1.79.5X997.69X1014.3X50X0.25.2乂0.9+0.97.28乂99+7.2826X15.7+15.7X2416.12X99+16.1212.5X8.8(2.275+0.625)X0.2

5、87.09X10.80.8X7.0956.5X99+56.532+4.9-0.98.7乂17.4-8.7乂7.44.8-4.8X0.5(1.250.125)X86.81+6.81X990.25X185X404.4乂0.83.4乂0.846X0.33+54乂0.33(9.37+9.37+9.37+9.37)X2.5(2.275+0.625)X0.282.37X6.3+2.37乂3.72.5X1.25X0.320.25乂39+0.2512.5X0.4X2.5X8学习必备欢迎下载三、解方程:54-X=247X=49126+X=422.4X=26.47.5x-3x=18+3.86=5.4624x+6x=63.65.6x+4.4x=5.24x+3X0.7=6.517.89-x=12.8940.8+x=57.3-3.25=162x+0.82=8.2+0.5x=77.8-x=2.680x+4=12-0.9x=2.752x+0.4x=4835x+13x=9.60.52X5-4x=0.620.54x=8.10.7(x+0.9)=421.3x+2.4