五年级数学简便计算练习题

1、简便计算(1)5.327.934.68 2.50.390.4 32.18.31.7 12.39(5.182.39) (252.50.25)4 1.83.52.51.8 12.58.8 3.61.23.61.22 6.83.62.6864 1.3112.582 1.25320.25 3.80.99 简便计算(2)4.699+4.6 7.5101-7.51.252.5（804） 4.647+4.654-4.6 7.682.50.4 0.4572+450.18+4.5 5.599 0.12572 12.50.42.58 9.51014.27.8+2.24.2 0.873.36+4.640.87简便计

2、算(3)4.080.25 4900.355.2899 12.54.120.85.710.1 490.12580.4632.5 0.57.6200.34101 4.8699 4.9101 8.75 11-8.75 9.9 212 0.68101简便计算(4)3.26 5.7-3.260.7 55.699+55.61.25 2130.8 6.13.6+3.63.94.7599+4.75 2.73991.22.5+0.82.5 1010.450.254.784 0.652027.28.4+2.88.4 0.78984.80.25 1.5105 0.32.50.4简便计算(5)561.25 1.25+

3、4.6+0.75 1.67.51.25490.1258 0.4632.5 0.57.6209.6100.1 4210.2 9.80.5228.499+28.4 0.942.5-0.92.540.812.52.5 3.61010.12572 0.2539+0.25简便计算(6)3.20.82+3.21.18 1.5899+1.58100.22.5 14.5102 1.253.20.2512.15-3.83+0.85-6.17 2.651.7+1.351.73.550.43.550.4 0.1250.388018.6-18.60.5 3.583.6+6.43.583.050.254 4.250.4

4、4.250.4解方程（1）20-x=9 x-1.8=4 15-x=22.1x=3 x 7=0.3 1.6x=6.46x-35=13 3x-126=6 (5x-12) 8=24(100-3x) 2=8 6x+3=9 4x-2=10 5x-39=56 18+5x=21 8x-414=07x3=8.19 43-x=38 6.3x=7解方程（2）7(x-20)=140 6.7x-60.3=6.7 9x+x=04(6x+3)=60 2x+234=134 (3x-4) 5=4 2x+1.5x=17.5 8x-3x=105 3x+x+6=263x+6=18 2x-7.5=8.5 16+8x=404x-39=

5、29 2(x-2.6)=8 5(x+1.5)=17.58(x-6.2)=41.6 (x-3) 2=7.5 13.2x+9x=33.3解方程（3）8x-3x=105 5.4x+x=12.8 x-0.36x=16x+4.8=7.2 x-6.5=3.2 x8=0.46x+18=48 3(x+2.1)=10.5 12x-9x=8.73.8+x=6.3 x-7.9=2.6 2.5x=14x3=1.2 3.4x-48=26.8 2x-97=34.242x+25x=134 13(x+5)=169 5x+7=42解方程（4）x4.2=2 3.6x-x=3.25 2(x-3)=5.8x1.44=0.4 3.85

6、+1.5x=6.1 6x-0.9=4.57.8x+2.4x=20.4 2(x+1)=6 6(x-1.5)=154x-123=100 (x-5) 3=7 x-0.28x=3.60.34-2x=0.2 4(x+6)=36 x-0.8x=1.26x-2x=20 0.5+7x=18 3x-68=0解方程（5）8x+19=51 2.7x-14=21.1 x-0.38x=1.245.3x-2x=1.32 4(x+4.5)=20 5x-7.3=7.73.6x+8.5=22.9 7x+4 3.5=24.5 5x+28=486x-12=30 45-3x=24 54-x=24 7x=49 126x=42 3.5-x=2.51.8 x=2 9x=927 19.4-x=7列方程并求方程的解1.x的7倍比52多25。 2.x的9倍减去5，等于49。3.x加上26等于54。 4.x与5的积是85。5.x与2.3的差是4.7。 6.x