简便计算练习题集锦.doc

小学数学五年级上册简便计算练习1请用简便方法计算下列各题0.250.28 0.1253.22.5 3540.2 0.2540.254 3.59.9 3.599+3.5 3.5101-3.5 3.59.9+3.50.1 3.52.7+350.733.52.7-3.50.7 (32+5.6)0.8 3.50.6-0.50.64.93.5 70.254 70.125 8 7.35(7.350.25) 7.35(7.350.25) 7.325-(5.325+1.7)3.29+0.73+2.27 3.29-0.73-2.27 7.5+2.5-7.5+2.57.325-3.29-3.325 7.325-(5.325+1.7) 7.325-(5.325-1.7) 3.29+0.73-2.29+2.27 3.290.254 0.1258.8 63.42.50.4 4.91.4 3.9（1.35） （7.71.54）0.7 2.52.4 2.745 0.351.2520.8 0.132.4 150.25 0.8615.70.8614.7 2.4102147.322.68 2.648.677.3611.33 2.311.20.5（2.50.25）0.4 9.161.50.59.16 3.63.60.50.27.6 0.85199 0.258.54 0.2536 0.1253.22.5 3540.2(0.5+x)+x=9.82 x+2x+18=78 1.5(x+1.6)=3.62(X+X+0.5)=9.8 (200-x)5=30 2(x-3)=5.825000+x=6x (x-140)70=4 65x+7=423200=450+5X+X 0.1(x+6)=3.30.4 9x+42.591X-0.8X=6 4(x-5.6)=1.6 4.2x+2.5x13412x-8x=4.8 7(6.5+x)=87.5 10.5x+6.5x=517.5*2X=15 (27.5-3.5)x=4 89x-43x=9.21.2x=81.6 x+19.8=25.8 5x-45=100x+5.6=9.4 5.6x=33.6 1.2x-0.5x=6.3x-0.7x=3.6 9.8-x=3.8 23.4=2x=5691x1.3 75.6x=12.6 4x-x=48.6X+8.3=10.7 5x+12.5=32.3 4.5x-x=285(x+8)=102 X-5.7=2.15 3x816x+3x+10=70 155X-2X=18 7(x-2)=2x+33(x+3)=50-x+3 3X+0.7=53x+9=27 5x+15=60 3.52=4.2+x18(x-2)=270 3.5-5x=2261.5=2x+10 12x=300-4x 0.37+4x=12.50.516160.2=4x 0.516160.2=4x30x+25=85 3x-8=30 9.25X=0.4031.48-2x=6 6x+6=12 16.9X=0.36x-12.83=0.06 3x-3=1 X0.5=2.6410-3x=170 5x-3x=4 35x803(x+0.5)=21 2x+16=19 1.8-6x540.5x+8=43 5x+8=19 6.7x60.36.71.5x+18=3x 0.2x0.40.53.7 53-x2=8 5-8x=49.4x0.4x16.2 0.273x=0.35 1/3x5/6x1.4 x0.756=90 10-x=8 x5+9=21 48-27+5x=31 (0.5+x)+x=9.82 (200-x)5=30 2(X+X+0.5)=9.8 (x-140)70=4 25000+x=6x 0.1(x+6)=3.30.4 3200=450+5X+X 4(x-5.6)=1.6 X-0.8X=6 7(6.5+x)=87.5 8-7x=112x-8x=4.8 (27.5-3.5)x=4 18(x-2)=270 18(x-2)=270 91x 1.3 12x=300-4x 4(x-5.6)=1.6 7(6.5+x)=87.5 0.1(x+6)=3.30.4 10.5+x+21=56 x+2x+18=78(200-x)5=30 (x-140)70=4 0.1(x+6)=3.30.4 (0.5+x)+x=9.82 3(x+2.1)=10.5 2(X+X+0.5)=9.8410-3x=170 9.8-x=3.8 25000+x=6x3(x+0.5)=21 75.6x=12.6 13(x+5)=1693200=450+5X+ 0.5x+8=43