五年级上期末小数乘除法及递等式专项练习.docx

4.6×6=0.18×15=31.5×24.50.63×1.051、得数保留一位小数。15.6x13=，3.06x36二,4.23×0,0280.32×0.20.37×2A35.6×0.5066.728×3.234.3×0.238.9×7=0.025×14=0.8×0.5636×0.563.58×20.5×0.92、得数保留两位小数。，8.9×1.1×473.6×9.85-5.466.58×4.5×0.92.5×(3.8×0.04)(8×5.27)×1.250.25×39+0.252.7x5.4x398.05×3.4+7.62.8×0.5÷1.587.69×101，46×0.33+54×0.330.125x72，1、下面各题，怎样算简便就怎样算。9.8+99×9.81.25×884.65×32+2,5×46.5+0.465×43012.5×0.4×2.5×89.5×1014.2×7.8+2.2×4.20.87x3.16+4.64,5×0.3×0.25.2×6-106.8-0.8×49.8-O.6+3.2O.6×0.5×1.138.25+2.4×O.512.8-4.8×O.2520×1.95-1.87. 5+2.5×5.2102×0.454.3×0.25×0.450.8×101-50.8.7.8×0.36-0.64×7.88×0.9×1.250.4×(2.5+25)2.4+7.6×3.414.25×14.64.25×14.681×1.012.139÷9.3×6.24.264÷(O.16×20.5)2.6×1.9÷2.62.88÷0.12×7.58. 5-21.28÷7.66.8÷(O.25×6.80.25×1.25×32O.13×3.89+0.13×6.11102×8.56.75÷0.25÷0.4.38.75-(24.5+8.75)O.4×2.32×O.25O.75×IO1.4.23.2×0.97.56×99+7.5670.317.48÷7.63.64÷5.2×23.321.8÷O.8-1.2×545÷(5.25÷O.25)16.5×101-16.50.96÷0.3×141.25×4×2.5×8.36.45÷(O.82+3.4×0.2)9.072.64÷0.41.5×10113.6×O.85-3.6×O.85104×8.5O.25×6.2×O.423×6.5+17×6.512.6×7.5+8.386.4÷6.4-O.436÷0.4×0.25(24.6-18.1)×3.47.6×9.9+7.6×0.b13.6×0.8×12.523.9×8.5-3.9×8.5(2.55+9.6÷16)÷0.429.2÷0.25÷4.脱式计算,能简算的要简算。，O.175÷0.25×4O.175÷0.25÷0.4200÷(172-72)÷25.630×840÷(240-212)800÷252000÷125,25×63×49000÷125列竖式计算：21÷24=7.2÷0.18=,列竖式计算（得数保留两位小数）。”210÷1.48.56÷0.42.688÷O.561O÷O.004,2.7÷7.525.6÷0.032420÷40800÷4094÷27“10-7.64=.13.88-6.29二，12.6+7.437>8.448÷14二32×6.07-二、列竖式计算.1.64+2.35=O.48×350三9.52÷34二9.25X16=8.34-6.2：12.6+3.4=8×1.36=8÷50=29÷22（保留两位小数）1.25X320X25,489×101-489.1.86X7三26.3+7.93=100.2-2.28=三、计算.0.25×27×445×36+64×459.9×999+9.98×25×1.25×1628×45+30×1356+5.6×90.98×54+1.5.二、列竖式计算.0.58X250=10.88÷34=926×0.15=8÷500=44÷9（精确到百分位）23X7.06=三、计算(能简便的用简便方法计算).8×25×1.25×16445.55-(6.82+15.55)4.8×39+61×4.834.52-17.87-12.232.5×56+4.5×65.489X1014894.57+3.17+3.43+5.83(85+40)X(205).578-405÷45×1644×4.6-4.6X4.2、用竖式计算：（6分），O.37×2.4=1.55+3.82（保留一位小数）,3、递等式计算，能简便的用简便方法计算。（18分），5.5×8.2+1.8×5.50.25×0.89×44.8X0.98.8.8X1.257.65÷0.85+1.123.4÷5.2X3.2,4、用竖式计算：（6分）56.5×0.24=93.6÷0.052="3、递等式计算，能简便的用简便方法计算。（18分），2.35X4.64+5.36×2.3512.5×1.36×0.82.6×10.1.4.4×0.2525.2÷12+2.943.5÷15-1.45。4、用竖式计算：（6分），0.59X0.027=6.72÷6.4=5、递等式计算，能简便的用简便方法计算。（18分），1.87×3.05+8.13X3.051.25×0.45×0.89.8×3.7.O.44×2.52.25×0.4÷0.631.04÷3.2-4.7,3、递等式计算，能简便的用简便方法计算。（18分），3.26X10.1-0.1×3.260.125×9.8×8102X4.8，2.4×2.5（27.8-15.6）×0.89.12÷57+4.84.2、用竖式计算：（6分）.1.03×5.9=3.8÷4.5.（得数保留两位小数）一3、递等式计算，能简便的用简便方法计算。（18分），1.39×6.1+3.9×1.390.25×1.6×0.410.IX1.9.2.4X1.250.48X20.2-4.242.72÷0.48+0.52,2、用竖式计算：（6分）O.86×1.2=5.63÷6.1.（得数保留两位小数）.3、递等式计算，能简便的用简便方法计算。（18分），1.2×2.5+0.8×2.52.33×0.25×4102×0.45.8.8×1.257.06X2.4-5.7021÷1.4+262、竖式计算：，1.06×2.5=2.7×0.43=28.2×0.45=5.6×1.3=-O.1575÷3.15=O.612÷1.8=16.787÷0.28>(保留一位小教)，3、脱式计算：，2.139÷9.3×6.2376-1.5÷0.24*0.72×0.8÷0.324.264÷(0.16X20.5)“4、计算卜面各题。能简便的用简便方法计算.6.8×2.7+2.7×3.2，4.8×0.27+0.52×2.7.4.05÷0.5+10.7521.6÷0.8-1.2×58.4×6.9÷(6.44-4.14)0.38×102