小数乘除法口算训练.ppt

0.8×7＝ 0.7×8＝ 1.32×8＝ 1.5×7＝ 10.3×2＝ 3.5×0.2＝ 0.9×0.3＝ 5×0.6＝ 10×0.05＝ 0.13×7＝ 0.7×4＝ 0.05×4＝ 12.5×8＝ 0.4×50＝ 3.25×0＝ 2.3×4＝ 2.6×3＝ 7.5×0.1＝ 0.45×0.2＝ 4.1×2＝ 3.5×0.01＝ 9×0.5＝ 0×9.8＝ 3.9＋0.39＝ 4.1×2＝ 2.6×3＝ 1.25×8＝ 7.5×0.1＝ 1×0.06＝ 0.9×0.3＝ 5.6 5.6 10.56 10.5 20.6 0.7 0.27 3 0.5 0.91 2.8 0.2 100 20 0 9.2 7.8 0.75 0.09 8.2 0.035 4.5 0 4.29 8.2 7.8 10 0.75 0.06 0.27 9×0.5= 2.5×0.4= 10－3.52= 8.2＋1.8= 0.2×0.4= 0.22×4= 0.9－0.52= 3.99×1= 4×0.3= 30×0.1= 0.35×0.2= 1－0.08= 4.8＋5.2= 2.01×0= 2.4×5= 1.25×8= 0.21×100= 3.4－1.4= 7.82－7.2= 2.19＋9.1= 10.1－0.89= 6.8＋0.42= 0.8＋0.18= 0.72－0.24= 8.1－5.1= 0.89－0.25= 1－0.98= 0.48＋0.52= 0.5×40= 0.125×8= 4.5 10 0.38 3 10 10 0.62 7.22 3 1 1 0.08 3.99 0.07 0 21 11.29 0.98 0.64 20 6.48 0.88 1.2 0.92 12 2 9.21 0.48 0.02 1 5.6÷1.4＝ 0.48÷0.8＝ 4.4÷0.11＝ 0÷3.89＝ 0.9÷0.45＝ 9.6÷16＝ 4÷0.5＝ 5.1÷0.17＝ 1÷0.01 ＝ 7.5÷1.5＝ 0.81÷9＝ 3÷0.5＝ 10÷25＝ 4.8÷0.16＝ 0.28÷1.4＝ 3.52÷1＝ 8.4÷0.4﹦ 6.4÷4﹦ 1.5÷0.3﹦ 1.8×5﹦ 7.2÷0.9﹦ 2.2×6﹦ 4.5÷0.9﹦ 0.3÷0.1﹦ 0.42÷7= 2.9÷100= 1.2÷0.04= 0.42÷0.6= 1.5÷0.03= 3.6÷0.06＝ 4.8÷0.16＝ 1.5÷0.03= 0.96 ÷0.8 ＝ 187÷1000= 3÷4＝ 8.1÷9＝ 1.25÷0.25＝ 2.5÷0.5＝ 0.72÷0.6＝ 2.6÷1.3＝ 30.4÷4＝ 0.001÷0.1＝ 7.82÷0.1 ＝ 2.5÷5＝ 4÷0.25＝ 8.4÷7＝ 8.4÷0.5﹦ 1÷4﹦ 1÷5﹦ 1.8×0.5﹦ 7.2÷0.09﹦ 2.5×6﹦ 4.5÷0.15﹦ 0.3÷0.2﹦ 0.45÷5= 0.29÷0.01= 1.2÷0.4= 0.48÷0.24= 15÷0.3= 3.6÷0.02＝ 0.75÷0.25= 0.125×8= 0.86÷2= 0.108÷2= 10.8÷9= 9.65÷0.1= 9.6÷0.8= 2.4÷0.8= 4.95÷0.9= 0.4×0.5= 3.08×0.01= 46.7－3.8= 6.9×0.1= 0.35×0.6= 7.2+12.8= 4.95×1000= 8.65×10= 0.8×1.1= 1.64+4.1= 24÷15= 3.6÷24= 12.5÷5= 10÷20= 0.64÷0.8= 5.2÷13= 0.56÷28= 0.7×9= 12.8÷4= 4.8÷0.3= 0.36÷0.4= 0.325×100= 1÷2.5= 4.8×0.5= 2.5×8= 0÷1.7= 0.22×102= 0. 56÷0.7= 4.5－0.05= 9.6÷0.8= 3.28×0.1= 16.5÷0.5= 24×0.5= 1.6÷0.8= 5×0.12= 5×0.24= 0.25×0.4= 3.9÷0.13= 7×0.62= 0.01×0.1= 5.4÷0.6= 3.2÷5= 7.2×0.1= 7.8÷0.01= 1.25×0.8= 3.9÷0.13= 5÷0.25= 0.84÷2.1= 0.125×4= 3.2÷0.04= 2.8＋4.2= 12.2÷0.2= 2.3×100= 1.75＋32.5= 12.6÷0.03= 5.2×0.4= 8.4×0.02= 0.8×0.05= 12÷0.5= 1.02×0.2= 0.108÷2= 1.2×6= 0.26×0.3= 2.5×16= 7×0.62= 1.4×0.5= 0.75÷0.25=