六年级口算题及答案讲解学习.doc

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1、__________________________________________________2.8×0.4＝14－7.4＝1.92÷0.04＝ 0.32×500＝0.65＋4.35＝10－5.4＝ 4÷20＝3.5×200＝1.5－0.06＝ 0.75÷15＝0.4×0.8＝4×0.25＝ 0.36＋1.54＝1.01×99＝420÷35＝ 25×12＝135÷0.5＝3/4+1/4= 2+4/9=3-2/3=3/4-1/2= 1/6+1/2-1/6=7.5-(2.5+3.8)=7/8+3/8= 3/10+1/5=4/5-7/10=2-1/6-1/3= 0.51÷17＝32.8＋

2、19＝5.2÷1.3＝ 1.6×0.4＝4.9×0.7＝____________________________________________________________________________________________________1÷5＝ 6÷12＝0.87－0.49＝ 1.(1+1/2)(1+1/3)(1+1/4)2.(1-1/2)(1-1/3)(1-1/4) 3.8+2-8+24.25×4/25×45.7.26-(5.26-1.5) 6.286+1987.314-2028.526+301 9.223-9910.6.25+3.85-2.125+3.87511

3、.9-2456×21 12.0.5/11.5-4×2.7513.1/2×3/514.3.375+5.75+2.25+6.625 15.1001－9036÷1816.3.8×5.25+14.517.2.1×4.3+5.7×2.1 18.30×1/319.102×45-32820.2/3×12 21.2.8×3.1+17.6/822.3/5×5/623.(50-12.5)/2.5 24.2/5×1/325.6110×47+63926.1/2-1/6 27.3.5×2.7-52.2/1828.1/7×1/5____________________________________________

4、________________________________________________________29.3.375×0.97+0.97×6.625 30.25×4/531.6.54+2.4+3.46+0.632.5/6-1/2 33.95.6×1.8+95.6*8.234.1/2×1/535.600-420/12 36.344/3.6-5.4×0.2537.16/2+30/2+90/638.3001-1998. 39.5000-105×3440.0.15/0.25+0.75×1.241.(1/2+1/3+1/4)×0.24 42.(25+4)×443.300-4263/21

5、44.0.81/0.25+5.96 45.403÷13×2746.1.5×4.2－0.75÷0.2547.3.27×4+3.27×5.7 48.（1.2+1.8）×4.51025－768÷3249.0.25×80－0.45÷0.9 50.1025－768÷3251.0.25×2.69×452.2348+275×16 53.2/9×15/8-1/12×9/554.2.4+2.4×(5.375-3.375)55.645-45×____________________________________________________________________________________

6、________________12 56.0.15+1.2/0.24-0.4557.3.75-(2.35+0.25/1.25)58.76×1/4+23×25/100+0.25 59.10-2.87-7.1360.0.96+9.6×9.961.7.5-5.7×1/3 62.12.37-3.25-6.7563.16×6.8+2.2×16+1664.401×19+284 65.58.7-16.65/3.766.0.4×4.7×2.5+(2.3+5.3)67.9.31-1.125-7.875 68.640+128×4569.8.2×1.6-0.336/4.270.400×(0.62+0.08)

7、59+73=83+38=56+74=162+959=135+69=47+98= 536+469=915+85=351+649= 208+792=873+127=____________________________________________________________________________________________________989+109= 80+370=120-80=6×4+5= 82-（9×8）