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1、0.4x8 =0.2x4 =6.2x2 =2.2x4 =9.2x4 =5.1x3 =0.2x8 =0.2x3 =0.6x80 =0.07x4=0.08x9=0.91x2 =0.92x5 =4.4x20=0.21x6=0.51x4=0.05x7=0.04x3 =0.52x30=0.63x20 =0.9x2 =0.5x6 =0.4x3 =0.9x4=0.7x9 =0.6x9 =9.2x3 =2.2x3 =0.07x9=7.1x90=0.74x2 =8.3x20=9.1x40=6.1x40=0.06x3 =0.06x5 =0.12x3 =2.1x80=0.02x30=0.42x50=0.9x2 =0
2、.4x7 =0.2x3 =0.6x5 =0.4x6 =7.2x4 =1.4x2 =0.4x9 =7.2x20=0.07x2 =9.4x20 =0.03x4=0.21x2 =0.12x5 =0.23x2 =0.82x3 =0.51x8 =0.93x3 =0.41x90=0.71x70=0.8x2 =4.5x2 =0.3x8 =0.7x4=6.1x5 =0.5x7 =0.8x9 =4.2x4 =8.2x20=0.9x60 =0.02x9 =0.03x2 =0.11x4=7.3x20=0.93x2 =3.1x30=0.08x2 =0.41x50=0.52x40=0.53x20=0.7x5 =0.8x
3、4 =0.7x6 =4.3x2 =0.7x5 =1.2x3 =0.6x3 =0.07x3 =2.4x20=0.41x7=0.81x9 =4.3x30=6.2x40=0.03x9 =5.5x20=0.06x9 =9.5x20=0.43x30=0.91x70=0.85x20=4.2x5 =4.27 二9.1x80=0.12-6=0.02x2 =0.09-3二2.8:0.4 二0.4x0.2 二3.9-13 =63.45:9二0.85x0.2 =0.42x0.2 =0.48-0.6=0.04x0.2 =101x0.13 =0.5x4.1x2 =2.5x9.6x4 =9.7x0.25x4 =4.5x2
4、.5x0.4 =125x7.9x0.8 =0.6x4 =0.3x3 =0.72-9 =16.1:2 =0.9x40=0.81x3 =0.64-0.3 =3.64-0.9 =1236-6=0.43x0.2 =0.91x0.4=0.96-0.3 =0.43x0.3 =101x0.71=2.5x8.1x4=2.5x5.2x4 =4.7x1.25x8 =7.6x0.5x0.2 =8x2.5x0.125 =125x7.7x0.8 =0.7x7 =2.44二0.06x7=32.8:4 =0.09x7=l.lx0.2 =27-0.3 =0.6x0.9 =20.32-4=0.21x0.8=0.36-0.4=0
5、.084-0.8=0.88:0.4=101x0.99=9.8x5x0.2 =0.5x9.8x2 =6.3 x8x 1.25 =2.5x5.1x0.4 =6.7x0.125x8 =7.6x125x0.8 =125x4.1x0.8 =8x3.8 + 2x3.8 =1.4x1.25x0.8 =6.4x1.25x0.8 =6.6x 1.25x0.8 =2x6.4+98x6.4=9.5x12.5x0.08 =7.2x8.4+2.8x8.4=97x0.91+3x0.91=8x7.27 + 92x7.27=5x6.9 + 5x6.9 =0.3 x 5 + 5.7 x 5 =8.7x0.8x1.25 =6.1
6、x1.25x0.8 =5.8x0.8x12.5 =7x3.6+93x3.6=2.6x12.5x0.08 =0.5x4.8+0.5x4.8=98x4.31+2x4.31=0.2x4.1 + 0.8x4.1 =4x53 + 6x5.3 =0.6x3 + 0.4x3 =5.1x12.5x0.8 =6.9x12.5x0.8 =9.4x125x0.08 =99x5.1+1x5.1 =5.4x12.5x0.08=16x4.3+8.4x4.3 =7x3.26+93x3.26=8x2.37+92x2.37=3-5 =4.8-6=0.3:6 二0.07x2 =0.72-8=12.820.9x96=二3.2-0.
7、8 =2.5 x0.1 =0.04x43 =70.4x80=40x10.3 =0.05-?-0.5 =0.49:0.7二40.3x0.8=0.034-0.3 =0.06x3.9=0.02-0.1=0.25-0.5 =0.8x6 =1.1x5 =2.6 :2 二16.12 =4x4.02 =0.3x50=0.63-7=3.9-1.3 =0.6-0.2 =0.3 x0.3 =49.56-7=15.24-3 =0.4x308=0.4x0.07=0.03:0.1 二0.9x0.09=0.3x0.06=0.81x0.8=4.7x0.08=602x0.09=3.5x3 =1-0.5 =0.7x6 =16.
8、8:2 二30x0.2 =0.14-2 =0.4x90 =0.5x0.6 =0.9x73 =2.2-1.1 =16.48-8=0.5x200=34x0.09=0.15x0.9=0.4x2.01=0.72-0.9=80.4x0.5=0.56-0.7=0.68-0.2 =0.05x260=3.5-5 =2.4:4 二6x9.3 =40.1x9=0.32-4=60x0.7=0.1x40=2.1-0.3 =1.8-0.2 =0.8x0.7 =30x7.02 =350x0.1=0.9x0.94=20.7x0.6=0.1x8.08=0.4x3.08=0.87x0.1=0.1x0.05 =10.2x0.8=
9、0.07x600=3-0.5 =0.5x8 =10.15二0.16:8 二0.09-9 =80x4.4=0.4x9.6=1.6x0.8=1.2-0.4=0.9x901 =48.24-6=10x0.66=7.8x0.01 =0.7x4.01=0.3x5.07=0.54-0.9=0.8x3.02 =0.3x0.08 =0.71x0.1 =150x0.09=23x0.2 =4.1x0.2 =0.5x0.5 =1.3x0.2 =3.5x0.2 =2.1x0.4=2.3x0.3 =1.1x03 =4.2x0.2 =45x0.2 二2.1x0.2 =0.22x0.3 =0.61x0.3 =0.91x0.8
10、 =0.24x0.2 =0.11x0.6=0.64x0.2 =0.31x0.2 =0.12x0.3 =0.4x0.6 =0.6x0.9 =3.4x0.2 =0.6x07 =07x0.8 =1.2x0.4=0.4x0.5 =1.2x0.5 =13x0.3 =43x0.2 二0.61x0.8=0.44x0.2 =0.72x0.2 =0.42x0.4=0.43x0.2 =0.71x0.9 =0.84x0.2 =0.11x0.7=0.61x0.4=1.1x07=l.lx0.5 =2.2x0.4=4.4x0.2 二1.5x0.2 =0.9x07 =2.1x03 =3.3x0.2 =0.3x0.6=11x
11、0.6=0.91x0.2 =0.93x0.3 =0.81x0.6=0.04x0.2 =0.31x0.9=0.71x0.4=0.72x0.3 =0.82x0.4=0.85x0.2 =1.2x0.2 =2.2x0.3 =11x0.8 =0.5x0.9 =0.8x0.2 =2.5x0.2 二11x0.2 =0.4x0.9 =11x0.4=2.4x0.2 =0.33x0.3 =0.83x0.2 =0.52x0.2 =0.61x0.2 =0.52x0.5 =0.72x0.5 =0.71x0.6=0.21x0.7=0.61x0.9=1.4x0.2 =0.2x03 =3.1x0.2 =0.8x0.5 =07
12、x0.4=1.2x03 =0.9x0.3 =3.2x0.2 =0.9x0.8 =2.2x0.2 =0.83x0.3 =0.11x0.8=0.51x0.8=0.91x0.4=0.73x0.3 =0.71x0.7=0.14x0.2 =0.63x0.3 =0.21x0.2 =5x(2x54) =5x(483x2) =1.7x12.5x8 =1.1x25x0.4=5.2x2.5x0.4 =0.5x2.8x1.4=2.5x3.5x2.4=1.2x6.2x0.5 =5x(30.44x2) =5x(2x96.93) =6.8x0.125x8 =2.9x0.125x8 =6x0.2+4x0.2 =7x7.5
13、+ 3x7.5 =1.25x7.5x5.6 =1.25x6.9x3.2 =9.8x12.5x0.8 =1.25x8.1x1.6=94x7.1 + 6x7.1 =9x9.6+91x9.6=l.lx5x0.2 =7.7x0.25x4 =5.9x1.25x8 =2.5x7.9x2.8 =0.5x6.5x1.2 =0.5x4.8x0.2 =0.5xl.2x0.6 =1.2x3.2x2.5 =5x(52.76x2) =3.5x125x0.8 =4.4x0.125x8 =8x2.4 + 2x2.4=4.8x9 + 3.2x9 =4xl.l + 6xl.l =1.25x6.2x6.4=1.25x9.1x0.
14、8 =1.25x5.4x3.2 =5.7x1.25x0.8 =4x3.5 + 96x3.5 =96x9.5+4x9.5 =2xl.5x2.5 =4.1x0.25x4=3.1x12.5x8 =8.5xO.5xO.2 =6.9x0.5x0.2 =0.5x9.6x1.6 =3.6x4.4x2.5 =1.8x8.1x0.5 =5x(2x97.23) =7.9x0.125x8=8.1x125x0.8 =1x3.6+9x3.6=4x0.8 + 6x0.8 =2.5x(40.4x4) =1.25x4.6x5.6=5.6x1.25x0.8 =1.25x2.9x0.8=8.3x125x0.08 =99x8.1+
15、1x8.1=1x4.5+99x4.5 =1.25x(8x90.3) =2.5x(4x39.85) =2.5x(4x65.64) =1.25x(33.95x8)=1.25x(75.27x8) =5.6x1.8- 1.8x1.6=5.6x7.8-2.8x5.6 =5.1x4.3-5.1xl.3 =6.5x5.5-3.5x6.5 =3.2x63-3.2x4.3 =8.2x7.4-8.2x2.4=0.9x9.7+9.1x97=91x1.84+9x1.84=0.2x2.4+0.8x2.4=2.5x(4x50.73) =2.5x(65.93x4) =1.25x(15.63x8)=1.25x(72.66x8
16、) =6.3x67-6.7x1.3 =5.5x3.2-5.5x2.2 =5.2x7.5-7.5x2.2 =1.9x4.3-1.9x4.3 =27x7.4-3.4x2.7=9.8x43-9.8x3.3 =3.2x6.4-3.2x4.4=9x6.54+91x6.54=0.3x4.9+07x4.9 =2.5x(4x45.61) =2.5x(81.68x4) =1.25x(8x57.35) =1.25x(67.07x8) =5.2xl.5-1.5x2.2 =27x2.4-1.4x2.7 =5.7x5.7-57x2.7 =9.2x5.2-3.2x9.2 =8.4x3.1-3.1x8.4=47x4.3-4
17、.3x3.7 =7.8x3.8-7.8x2.8=4x3.15+96x3.15=0.3x8.3+0.7x83 =4-5 =2-5 =2-4=1-5 =2.4-6 =6.9-3 =4.4:2 二0.4-2 =6.3:3 二1.8:9二4.6:2 二0.99 二8.8-4=9.6-3 =0.2-5 =3.6:3 二5.4-9 =8.4-2 =9.9:3二1.4-2 =2.1-7 =4.8 + 6 二8.82 二1.6:8 二7.2-8 =0.1:2 二1.6:2=8.4:4 二4.8-4=1.5-5 =4.2-2 =1.2-4=0.3-5 =2.4-2 =0.6-3 =0.6-6 =0.4-5 =6
18、.4-2 =2.8-2 =3.6-4=3.6:9 二3.9:3 二0.15:5二0.18:9 二0.05:5二0.21-3 =0.27-9 =0.18 : 6 二0.16:2二0.14-2 =0.64-8=0.24-6=0.27-3 =0.35-7=0.49-7=0.48-6=0.08:2二0.42-7=25.1:5 二0.819=0.45-5 =0.12-4=0.36-9 =0.24-4=0.09-3 =12.4-2 =0.08-8=0.12-2=42.48-6=56.24-8=48.16-8=12.27-3=63.54+9=42.42-6=63.42-7=45.15-5 =3232-8=4
19、8.54-6=28.28-7=28.32-4=4-8 =6.3-9 =8.6:2 二6.8-2 =8.1 9 =8.2 -2 =2.4-4=2.7- 9 =2.8- 7 =1.2-3 =0.54-9=0.63:7 二0.72-9=45.45二15.6:3二0.18-3 =63.35-7=12.15-3 =48.56+8二24.21-3 =4-0.5=4.9-07=3-0.5 =7.2-0.8 =0.9:0.1 二0.1:0.5 二3.64-0.6=3.6:1.2=0.6M.2 二4.8-1.2 =0.5:0.1 二9.97.1 二1.2-0.3 =0.08:0.2二0.034-0.3 =0.4
20、6-0.2 =0.63:0.7 二0.24-0.2 =0.66-0.2 =0.04-0.4=0.45-0.5 =0.42-0.2 =4-0.8 =18-0.2 =2.8:0.4 二3.2:0.4 二4.5-0.5二3.507 =6.6-1.1 二1.2-0.4=0.4-0.1 =0.8-0.4=0.07-0.7=0.18:0.2二0.44-0.2 =0.964-0.3 =0.12-0.3 =0.694-0.3 =0.01-0.1=0.82-0.2 =0.72-0.9=0.36-0.4=1-0.5 =1.8-0.9=3.2-0.8 =6.3: 2.1 二2.5-0.5 =3.64-0.9=6.4
21、: 0.8 二2.8-1.4=4.8-2.4=33-1.1 =0.14-0.2 =0.09:0.3=0.934-0.3 =0.88-0.4=0.49:0.7 二0.45-0.9=0.364-0.3 =二0.32-0.4=0.26-0.2 =3.9-1.3 =6.923 =6.8：3.4二8.8M.4 二2.4-1.2 =4.5- 0.9 二4.6- 2.3 =8.8-2.2 =2.40.6 =0.664-0.3 =0.54-0.6=0.68:0.2二0.14-0.7=0.86:0.2二0.994-0.3 =0.16-0.8=0.36+0.6 二0.42-0.7=0.06-0.2 =3.54-0
22、.5 =2.4：0.3 二27-0.3 =8.6-4.3 =6.64-3.3 =8.2-4.1 =77-1.1 =1.6-0.2 =2.27.1 二0.634-0.3 =0.08:0.4 二0.03:0.1二0.18-0.3 =0.48:0.2二0.64-0.8=0.564-0.8=0.32-0.8=0.394-0.3 =0.28:0.2 二3:5 二2.1-3 =0.8:2 =0.05-5 =0.04-2 =2.4-1.2 =6.4-3.2 =0.6-0.2 =6.2-3.1 二2.8:0.4 二4.5:0.5 二0.8-0.1 =15.24-3 =42.21-7=27.18-9=24.64
23、-8=0.88-0.4=0.12-0.2 =0.63-0.9=0.54-0.6=8.4-4=4.2-6=0.3:5 二16.4-8=1.8:0.9 二二二4.6-2.3 =27-0.9 =6.4:0.8 二6.34-0.9 =9.6-3.2 =56.72-8=14.21:7 二45.45+5=18.36:9 二0.02-0.1=0.18-0.6=0.42-0.6=0.81-0.9=1.8-9 =3-0.5 =2-0.4=0.25-5 =2.4:0.8 二0.8:0.2二0.1-0.5 =0.34-0.6=8.6-4.3 =0.9:0.3 1.8M.2 二12.12-4=32.24-4=56.5
24、67 二18.48-6=14.63:7 二0.16-0.4=0.24-0.6=0.69+0.3=0.04-0.2 =5.4:6 二1.8-6=2.7-9 =21.6-3 =2.6:1.3二0.30.1 =0.4-0.1 =5.64-0.8 =6.6-11 =4.4-2.2 =3.2-0.4=18.16:2 二18.81:9二21.35:7 二45.35 + 5 二0.48:0.6=0.48-0.2 =0.07-0.1=0.27-0.9=0.46-0.2 =6.4-8 =0.9-9 =0.24-8=0.36-4=27-0.3 =6.9:2.3 二0.2-0.5 =3.2-0.8=0.4-0.5
25、=2.807 =0.2-0.1 =18.54-9=16.64-8=12.36:6 二54.24-6=0.42-0.7=0.064-0.3 =0.27-0.3 =0.39+0.3=0.07-0.7=101x0.41=7.4x5x0.2 =1.7x0.25x4=5.9x0.25x4=9.8x12.5x8 =2.8x9.3x2.5 =0.8x8.6x0.5 =2.5x5.1x2.4=0.5 x8.5 x 1.4 =0.5x7.8x1.2 =2.7x0.125x8 =2.72+9.1+9.28=2.4x3.6x1.25 =2.4x8.9x1.25 =4.8x9.5x1.25 =8.16+6.82+3.
26、84=1.84+9.61+1.16=132+3.43+6.68=9.61+6.75+9.39=4.32+8.26+4.68二6.5x5x0.2 =2.4 x5x0.2 =2.2x0.25x4=3.2x12.5x8 =7.4+2.67+6.6=9.1x2.5x0.4=2.5 x6.6xl.2 =1.3 x0.5x0.2 =1.2x9.5x2.5 =1.4 x9.5 x0,5 =9.4x0.125x8 =9.28+8.9+2.72=4.8x7.1x1.25 =1.25x4.2x6.4=3.5x125x0.08 =2.55+4.27+8.45 二7.18+6.36+4.82=7.62+5.99+93
27、8=8.89+1.17+7.11=7.41+6.69+9.59=2x8.1x2.5 =7.6x12.5x8 =1.4x1.25x8 =8.6x1.25x8 =0.5x2.2x0.8 =2.3x0.5x0.2 =67x2.5x0.4=2.8x3.6x2.5 =0.5x8.2x0.6 =2.5x97x2.8 =2.8x125x0.8 =1.6x9.8x1.25 =6.8x12.5x0.8 =1.25x7.1x0.8 =9.86+3.25+4.14二5.23+2.74+4.77二7.15+4.87+8.85 二4.42+9.81+5.58=3.48+2.26+4.52二7.89+6.93+7.11=
28、7.87+8.74+1.13=93x8.5 + 7x8.5 =7.5+8.7+9.3+3.5=93+4.7+2.7+4.3=9.5+2.4+0.6+3.5=6.2+4.8+3.8+9.2=4.2+3.7+6.8+43=4.7+13+5.7+4.3=44x1.4-1.4x4.4=7.3x8.3-83x2.3 =16x6.2-1.6x4.2 =6x2.62+94x2.62=6x0.37+94x0.37=6.3+7.21+2.7+1.79=91x9.1 + 9x9.1 =95x2.1 + 5x2.1 =6.1+8.1+6.9+8.9=5.3+9.4+8.6+5.7 二4.4+2.8+42+9.6二3
29、.6+2.8+2.4+42=9.5+3.8+3.5+2.2=6.9x1.8-18x4.9=9.3x2.4-2.4x93 =1.4x77-2.7x1.4=6.9x 5.5 - 5.5x6.9 二二5.9+4.09+3.1+1.91=98x8.8 + 2x8.8 =8.9+8.7+73+2.1=1.6+7.9+41+2.4=2.3+11+3.9+7.7=6.3+3.8+1.2+6.7=2.7+2.6+83+3.4=91+1.9+4.9+7.1=27x1.1-2.7x1.1 =7.2x6.1-2.1x7.2 =4.2x3.1-3.1x4.2 =47x2.1 + 5.3x2.1 =0.7x3.8+03x3.8=1.6+5.06+2.94+8.4二