五年级下册，300道口算题及答案

17×40＝680,100－63＝37,3.2＋1.68＝4.88,2.8×0.4＝1.1214－7.4＝6.6,1.92÷0.04＝48,0.32×500＝160,0.65＋4.35＝510－5.4＝4.6,4÷20＝0.2,3.5×200＝700,1.5－0.06＝1.440.75÷15＝0.05,0.4×0.8＝0.32,4×0.25＝1,0.36＋1.54＝21.01×99＝99.99,420÷35＝12,25×12＝300,135÷0.5＝2703/4+1/4=1,2+4/9=22/9,3-2/3=7/3,3/4-1/2=1/41/6+1/2-1/6=1/2,7.5-(2.5+3.8)=1.2,7/8+3/8=5/43/10+1/5=1/2,4/5-7/10=1/10,2-1/6-1/3=1.50.51÷17＝0.03,32.8＋19＝51.8,5.2÷1.3＝4,1.6×0.4＝0.644.9×0.7＝3.43,1÷5＝0.2,6÷12＝0.5,0.87－0.49＝0.381.(1+1/2)(1+1/3)(1+1/4)(1+1/100)2.(1-1/2)(1-1/3)(1-1/4)(1-1/100)3.8+2-8+24.25*4/25*45.7.26-(5.26-1.5)6.286+1987.314-2028.526+3019.223-9910.6.25+3.85-2.125+3.87511.9-2456*2112.0.5/11.5-4*2.7513.1/2×3/514.3.375+5.75+2.25+6.62515.1001－9036÷1816.3.8×5.25+14.517.2.1*4.3+5.7*2.118.30×1/319.102*45-32820.2/3×1221.2.8*3.1+17.6/822.3/5×5/623.(50-12.5)/2.524.2/5×1/325.6110*47+63926.1/2-1/627.3.5*2.7-52.2/1828.1/7×1/529.3.375*0.97+0.97*6.62530.25×4/531.6.54+2.4+3.46+0.632.5/6-1/233.95.6*1.8+95.6*8.234.1/2×1/535.600-420/1236.344/3.6-5.4*0.2537.16/2+30/2+90/638.3001-1998.39.5000-105*3440.0.15/0.25+0.75*1.241.(1/2+1/3+1/4)*0.2442.(25+4)*443.300-4263/2144.0.81/0.25+5.9645.403÷13×2746.1.5×4.2－0.75÷0.2547.3.27×4+3.27×5.748.（1.2+1.8）×4.51025－768÷3249.0.25×80－0.45÷0.950.1025－768÷3251.0.25*2.69*452.2348+275*1653.2/9*15/8-1/12*9/554.2.4+2.4*(5.375-3.375)55.645-45*1256.0.15+1.2/0.24-0.4557.3.75-(2.35+0.25/1.25)58.76*1/4+23*25/100+0.2559.10-2.87-7.1360.0.96+9.6*9.961.7.5-5.7*1/362.12.37-3.25-6.7563.16*6.8+2.2*16+1664.401*19+28465.58.7-16.65/3.766.0.4*4.7*2.5+(2.3+5.3)67.9.31-1.125-7.87568.640+128*4569.8.2*1.6-0.336/4.270.400*(0.62+0.08)2/1*2=13/1*3=13/2*3=23/1*6=24/3*8=65/3*20=127/3*14=68/7*40=354/3*16=129/5*27=152/1*30=1512/7*24=1430/1*30=151/9*102=1819/9*76=364/9*8=185/8*90=14499/98*99=983/14*6=287/1*28=410/1*90=95/3*105=6319/7*38=145/1*25=58/19*16=3861/60*122=1207/2*28=86/1*48=89/7*18=1425/7*100=289/5*81=458/9*16=18123+25=148123-35=8856×7=392135÷5=27248+89=337146-23=123155×5=775456-12=38456+45=501546-457=8945×10=451564-12=47879+54=933896-546=35056×12=672.45-5=9457+456=913脱式计算30.8÷[14－(9.85＋1.07)][60－(9.5＋28.9)]÷0.182.881÷0.43－0.24×3.520×[(2.44－1.8)÷0.4＋0.15]28-(3.4+1.25×2.4)2.55×7.1+2.45×7.1777×9+1111×30.8×〔15.5-(3.21+5.79)〕（31.8+3.2×4）÷531.5×4÷(6+3)0.64×25×7.8+2.22÷2.5+2.5÷2194－64.8÷1.8×0.936.72÷4.25×9.95180－705×624÷2.4－2.5×0.8(4121+2389)÷7671×15-974469×12+1492405×(3213-3189)3.416÷（0.016×35）0.8×[(10－6.76)÷1.2]19.4×6.1×2.35.67×0.2-0.6218.1×0.92+3.930.0430.24+0.8750.4×0.7×0.250.75×102100-56.230.78+5.436+14.07×0.86+9.12.530.8÷[14－(9.85＋1.07)][60－(9.5＋28.9)]÷0.182.881÷0.43－0.24×3.520×[(2.44－1.8)÷0.4＋0.15]28-(3.4+1.25×2.4)2.55×7.1+2.45×7.1777×9+1111×30.8×〔15.5-(3.21+5.79)〕（31.8+3.2×4）÷531.5×4÷(6+3)0.64×25×7.8+2.22÷2.5+2.5÷2194－64.8÷1.8×0.936.72÷4.25×9.95180－705×624÷2.4－2.5×0.8(4121+2389)÷7671×15-974469×12+1492405×(3213-3189)3.416÷（0.016×35）0.8×[(10－6.76)÷1.2]19.4×6.1×2.35.67×0.2-0.6218.1×0.92+3.930.0430.24+0.8750.4×0.7×0.250.75×102100-56.230.78+5.436+14.07×0.86+9.12.5简算是乘号/是除号0.3*2.5*0.450*0.13*0.20.8*630*0.1250.78*1011.5*1029.8*251.2*2.5+0.8*2.51.25*0.7*0.80.038*5*2.13.8+4.5+6.293/0.31/33.25－0.84-0.1688*0.25*42.8*3.6+1.4*2.863*10.1（3.2+0.128）/0.89.83*1.5+6.17*1.510.1*87312*4+188*40.135*500*0.26.3+0.84+3.7+8.1618.75-0.43-4.570.25*0.03*413.7*0.25*82.65*1.7+1.35*1.732.8+5.6+7.2（2.5+0.25）*0.48*（2.5*0.25）8.4*0.2+1.6*0.21.25*0.8*0.5（1.5+0.25）*0.41.2*0.4+1.3*0.4方程9+6x=14x+9x=4+72x+9=178-4x=66x-7=127x-9=8x-56=18-7x=1x-30=126x-21=216x-3=69x=184x-18=135x+9=116-2x=11x+4+8=237x-12=8X-5.7=2.15155X-2X=183X0.7=5x＋13＝333－5x＝801.8+6x＝546.7x－60.3＝6.79＋4x＝402x+8=163.5×2=4.2x26×1.5=2x0.5×16―16×0.2=4x9.25－X=0.40316.9÷X=0.3X÷0.5=2.63－5x＝801.8-6x＝546.7x－60.3＝6.79＋4x＝400.2x－0.4＋0.5＝3.79.4x－0.4x＝16.212－4x＝201/3x＋5/6x＝1.412x＋34x=118x－14x=1223x－5×14=1412＋34x=5622－14x=1223x-14x=14x＋14x=6523x=14x＋1430x12x－14x=1x-0.7x=3.6

1+1=2，2+2=4，1+2=3，4+4=8，3+3=6，4+3=7

其实不用那么多

想多了，。，。，，，，，

还可以！😊😊