1、一、口算4.82.8= 1.3+2.5= 3.11+2.22= 26.2+13.1= 12.3+11.2= 35.813.3= 1.25+2.41=3.661.25= 1.50.5= 0.36+0.64= 2.1+0.6= 0.969.7= 10.9= 10.56=50,42= 1.9+8.1= 4.3+2.31= 0.7+0.23= 0.75+0.25= 0.17+0.33= 0.20.4=0.0110= 0.0150= 0.01100= 0.011000= 0.0910= 0.09100= 0.091000=53.810= 53.8100= 53.81000= 1.41410= 0.110
2、00= 36.910= 3.14100=0.618100= 18.110= 9.8710= 1.4100= 0.011000= 43.211000= 0.30.2=43= 40.3= 0.40.3= 133= 0.132= 0.130.2= 3624=3.62.4= 362.4= 3.624= 0.362.4= 0.60.7= 0.90.1= 0.85=1.10.4= 0.027= 0.31.3= 0.30.2= 0.51.8= 1.51.8= 72=0.72= 0.70.2= 36= 0.36= 0.30.6= 152= 1.52=1.50.2= 3.84= 2.54= 200.5= 4.8
3、1.6= 1.55= 104.5=0.393= 7.24= 65=二、竖式计算45.233.5= 3833.4= 8.25+1.55= 7.32.25= 102.45= 3.7+2.36= 10.28.75=15.4+2.97= 5.94+10.7= 11.657.39= 103.14= 11.7+40.3= 3.152= 87.23=3.8+3.54= 3.052.9= 8534.7= 0.77.8= 1.30.25= 1.443.98= 1.443.98= 1.360.8= 0.780.04= 4.80.25= 4.81.2= 0.320.8= 0.321.2= 9.80.5= 9.81.
4、3= 6540.9= 2.421.1= 3.141.5= 2.60.8= 2.152.1= 2.160=0.1250= 2.60.5= 1.260= 2.134= 4.80.3= 1.32.2= 9.60.8= 3.251.8=4.81.3= 4.80.9= 9.341.4= 0.79.32= 1.872.3= 0.150.63= 1.80.85=480.15= 0.861.2= 0.1258= 120.16= 13.30.95= 12.31.5= 93.6= 4.23.2= 1.85.5= （保留二位小数）8.096.7= 6008.09= 1.791.2= 4.483.5= 三、计算并验算
5、4.23.2= 11736= 1.85.5=四、脱在计算9.43(8.65+0.40) 4.6+12.3+5.8 15(1.3+3.9) 4.61.75+2.08 5(4.192.83) 7.41(2.96+3.04)4.28+0.533.37 3.2+1.272.49 1.54+2.08+3.62 9.5+4.856.36 5.6+2.7+4.4 4.6(1.75+2.08)4.023.5+0.98 70.81.251.75 54.19+2.83 2.6+1.43 (8+0.8) 1.25 2.50.61.80.52.52.84 2.513+0.9 0.2513.70.4 1.83+3.79
6、+0.17 221.67 0.894.8+0.895.2100.340.66 12.8+2.049.5 6.159.442 4.53.6+5.20.35 4.50.9+5.50.9 0.499+0.4 3.642.5 0.656.40.655.4 5.011.9+4.99五、解方程x19=2 x12.3=3.8 4x=380 3y=45 1.6x=3.36 47+x=47 4x=42 6m=42 y21=14 6y=54 x7=12 a18=26 1.2x=4824n=96 2x+20=80 3x+6=15 0.5x2=24 x+3x=180 2xx=4 4m2m=48 5y+y=96 y+y=33 x+3x=72 5x2x=123 y+3y=366x3x=4.8 3m+2m=65 3x+4=34 x+5=55 2x+5=45 2x6=403x+20=50 4x+9=249 3y6=48 y+2y=45 x360=312 6xx=1253x=3.6 x18=40 2y+7=91 x+2.5=10 5x3.9=5.1
