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1、百分数专项计算题计算:20(1-20%) 20(1-25%) 20(1+20%)20(1+25%) 60(30%-25%) 120(1-25%-40%)(48-12) 50% (4860%)10 63(17) 30%0.75 0.2525% 分数(百分数)计算题一、直接写得数:50% 60% 1 5 90% 12.5% 48% 25% 8 3.5 6 68 2.4 172%二、解方程:125%XX28 (140%)X98 120%X 120%X 80%X1240 X20%X16 X30%X65 1X 60%X2540 125%X X25%X 2X30%X9.2X25%X2.8 (160%)X0
2、.32 125%XX44 140%X0.7 X15%X42.5 78%X45=84六年级数学专项练习题一、 计算下面各题。32(1-37.5%) ()25% 25%+75% 48%+41 75%-(-25%) (+)+52%(84%3+8.72) (80%) + 80%(60%)87.5% 1(50%)12.5% +125%二、解方程。60%x+25=40 x10%x=18 2x%= x+30%x=52 (125%)x=36 x5x%=17.5 40%X3015 2X20%X3.3162.5%-x=15/16x+70%x=3402x/3+75%x=1/670%X + 20%X = 3.6 X
3、- 15%X = 68 40%x+21=372x+20%x=3.30.5+50%x=360%x+25=4024-120%x=18x 25%x = 6060 x + 60 25% x = 75x 60%x = 10x + 20%x = 360x + 30%x = 7825%x + 35%x = 635%x - 25%x = 1x + 20x = 48x - 20x = 36140x - x = 40x - 75x = 6x + 60x = 4840%X+25%X=130x+20%x=6x+70%x=34x-15%x=10.2(1-25%)X=45x+50%x=30x-40%x=122/3x-45%x=2.4x-40%x=3.625%x-16=2430%x+90=117x-20%x=2814%x-9.1=0.735%x+x=13.5x-75%x=0.5x-45%x=11075%x-50=2260%+4x=27.6