北师大六年级数学计算题.docx

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1、北师大六年级数学计算题1.直接写出得数。 453+198= 100.03= 3.4110= 0.10.01= 40.025= 131315= 4.50.7514= 5454= 0.10.01= 9600800= 7.5= 5.4+1又2/5= 023 9.7+0.03 = 789.9+7.8 2-0.2%= 4500.18 44115 +3 = 1-5445= 0.180.2 3500700 0.40.2 90.9 242/11 2042 1/21/3 2/57/8 0.9990.9 5637 8016 31.55 121.1 1.20.2 2.870.7 3050 258 12738 8.8

2、0.2 21/4 121/3 172 111/4 1.020.43 12525 14269= 0.568= 6.43355= 1.26= 5.49= 0.60.6 712550.8 43412= 315153266= 7557= 5421358 = 0.52 = 0.40.05 = 9.60.03 = 82625 = 1= 15= 11135 = 145658 = = 1322173 = 1154 = 100.01 = 355 = 18 = 2424 = 2.41% = 21113 = 脱式计算。 4050-630042 5.046.52.76 175310+710175 1314+5634

3、815571 69-3 (1)1.8(4.7-3.870.9) (2)8又1/28.5+1又1/28.5 (3)9.721.6-18.3057 (3)5.97+3.87.2-24.6= 135 780.3753889 1.5 8.4 + 3 0.3 + 15 10% 30 713 34 34 637471313 7 11 7 11 17.610210.5165 40.82.512.5 0.6514876565 5000672028107 7576252778 11324 4214 2.254.877.50.48 9 0.640.36 1.81/42.225 6.2540162.5 308161

4、487437 1 3.55/8 5/15 0.82.77.315/4 9.82827/5 49 951164.25446 340.6 0.86.24 313344 137545018 15 0.86.24 28 356 3、求未知数x。 155x = 4 0.6x32.5 = 67.5 X-18%65.6 X30X280 1215X4 120%xx =44 155x = 4 0.6x32.5 = 67.5 4= 1.2 x= 67.5 4= 1.2 x= 67.5 2x+30.9=24.9 2/3X + 3/4X=3又2/5 3又1/2X=1又1/3 7.5:x24:12 3x6 8.25 12 4x2 38:x4.75:1 1/3 x5/6 x1.4 x 2x18212