1、8 4.70.23 41.22.3132.4 58.8913 0.4480.28 4.450 7.2 6.25 8.90.363.258 7.20.48 7815.830.08 320.016 40.518 282.05 179.264 0.9450.0350.182.9 7.453.8 1.219.61.6 2.10.25 5.850.0155.0613 3.525.5 0.9574.6575.618 50.3414 0.8320.260.7312 0.438.6 3.850.0140.64 8.686.2 3.9520.76500.25 0.46515 9.720.02750.448 4.
2、953.3 18.272.13.5413 0.698.4 97.20.1864.824 6.50.48 7.42.8619 179.264 5.840.16400.32 90-16.75 7.044.073.5255 20.27.4 1.8722.4179.264 2.034.7 0.360.243.567.5 1.92.08 15.30.94.323.6 6.480.8 5.40.0362.41.02 0.264.5 4.750.058.322.5 3.270.64 0.2824.732.99.4 31.281.6 8.620.439.80.85 67.20.42 3.0612简便计算73.
3、81.6413.85.36 66.868.661.34 36.83.886.1 2 13.75(3.756.48) 5.48(9.40.52) 3.94.16.15.9 4.025.40.98 5.171.83.2 3.687.562.68 7.852.340.854.66 35.61.815.67.2 47.87.45-7.83.822.90.189.1 9.64.83.6 7.140.532.47 13.354.682.65 5.272.860.661.63 0.398+0.36+3.64 15.75+3.590.59+14.25 13243.756.3 12.253.10.856.17
4、6.3+4.82+3.70.82 48.42.7851.60.48 7.32.77.32.7 3.6-3.60.8 3.723.56.283.5 4.87.8780.52 56.59.95.65 7.0910.8-0.87.09 4.2994.2 9.7999.74 18.769.91.876 5.61.254.84.80.5 (1.250.125)8 2.5138 4.3612.58 5.8222.9116 15.613.115.615.62.1 27.53.77.53.7 1.51.28.81.5 2.5(6.22.6)0.4 3.40.46+3.40.54 0.322.5 7.6277.
5、61747.6 3.50.43.50.6 7.1241.124 2.651.71.351.7 26.70.557.5 4.78.35.28.30.83 48.42.7851.60.483.729.9+3.720.1 0.990.81+0.990.19+0.99 1.3925-0.039250 (2.5-0.25)0.4 1.258-0.02580 18.95(8.43+3.87)2.8(4.16+4.16+4.16+4.16)2.5 3.7899+3.78 1.2520.374 12.6(2.89+7.11)1.01 (2.31+6.69)0.03 8.542.54.23.5 3201.258
6、 3.520.4 4.780.23.420.2 6.443.64 15.20.254 9.60.80.4 17.8(1.784) 8.540.4 5.40.751.5 728(45.932.7)80.125 52.80.750.25 (7.715.4)7 2.30.4 4502 39(1.35) 2.240.64.8352.175 5.41.5 65(0.654) 列式计算(综合算式) (1)0.6乘0.8的积加上0.12后,再除以1.2,商是多少?(2)比47.88与3.8的商大42.5的数是多少?(3)1.25乘4.2减5,差是多少?(4)比4.7的1.5倍多3.05的数是多少?(5)一个
7、数的25倍是37.5,这个数是多少?(6)比47.88与3.8的商大42.5的数是多少?(7)60比一个数的3倍少30,这个数是多少?(8)一个数的4倍比60多24,这个数是多少?(9)用14.81与5.19的和,乘以它们的差,积是多少?(10)126.8与15.7的和,乘以1.02,积是多少? 解方程 x+150=290 79.4+x=95.5 x+55=129 x+3=18 x+32=76 100+x=3104.5 x =90 5 x =100 6.2x=124 1.8x=0.972 7 x =49 20x=40 8x=8 1.2x=81.6(检验)x54.3=100 x77=275 x58=144 x6=12 x7.6=8 x5.3=3.49x2.5=100 x3=33.3 x2.2=8 x6=12 66x=32.3 77x=21.9 99x=61.9 88-x=80 43x=38(检验) 54x=247x=0.001 56x=5 39x=391x =1.3 0.245x=0.35(检验) 10x=8x+ 0.5x=6 x0.2x=32 1.3x+x=263x+5x=48 14x-8x=12 24-3x=3(0.5+x)+x=9.82 7(x-2)=2x+3 (检验) (x-140)70=4
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