家长检查并签字：年月日2018—2019学年度五年级寒假作业28号直接写出得数。1.5×4=5.8＋1.2=45×0.2=4.08÷8=0.54÷0.6=3.1－2.9=0.12÷3=0.4×0.7=0.32×1000=7÷100=0.8＋0.02=0.84÷0.3=3.68÷0.01=9＋1.5=0.4×0.5=0.44＋0.6=2.5×0.4=0.125×8=3.6÷0.4=3.92＋7.2=竖式计算。（第（3）（5）题得数保留一位小数，第（6）题要验算。）（1）7.6×0.9（2）10.5×0.3（3）4.25×0.18(4)0.3÷0.12(5)104.78÷26(6)34.2÷0.829号脱式计算，能简算的要简算。新课标第一网8.7×10.17.06×2.4－5.76.35÷0.8÷1.252.5×6.8×0.42.5×3.2×1.2521.36÷0.8×2.9家长检查并签字：年月日30号脱式计算，能简算的要简算。102×0.458.27＋7.52＋1.73－3.520.79×99＋0.790.15＋0.75×1872＋8÷2.5－30.22.8×3.2＋3.2×7.2解下列方程。5.5＋X=8X－6=8.43X=2.70.4X=16X÷7=0.311X=1.131号解方程9X÷4=1353X－1.6=32.61.5×30－5X=10家长检查并签字：年月日家长检查并签字：年月日2X＋1.5X=42（X－3）÷2=7.58（X－6.2）=41.62月1号解方程2X＋2.8×2=10.42（X－2.6）=8X＋2.4X=5.15X＋3X=33.6X－0.36X=165.4X＋X=12.82号口算下列各题：25×3=24÷6=0.16×5=1.78×0.2=2.5×3=2.4÷6=1.2×5=0.7×0.01=2.5×0.3=2.4÷0.6=75÷10=0.7÷0.01=家长检查并签字：年月日2.5×0.03=2.4÷0.06=2.37+3.7=3.54+6.46=2.5×0.4=125×0.8=25×8=9.6×0.6=5.6×3=2.82+3.18=44÷11=1.5+0.25=0.31×3=33÷10=10.8÷1=9.08×0+9=0.1×0.1=1.5+0.25=6.08×1000=0.5+1÷1+0.5=6.4÷4=1.5÷0.3=4.2×3=1.8×5=2－1.75=10.6-2.7=1.6×0.25=0.25×4×1.2=2.05+0.75=8.4÷0.4=2.3÷0.1=4.2×15×0=4.5÷0.5=7.2÷0.8=3-0.98=8.95÷0.895=3.8×0.01=6×0.25=0.01×10=0.1+0.1×99=4.2÷3=2.5×1.2=100-60.8=3号口算4.5×80=19.6-1.8=728÷7=13.5÷5=56÷4=72÷16=72÷12=48÷2=5.6÷4=7.2÷16=7.2÷12=4.8÷2=0.14×0.3=1.8×0.5=102×5=51÷17=1.2-0.02=3.8+4.9=0÷3.5=3.5÷3.5=9.2－8.6=10.1－8.1=18×0.2=10×0.05=3.4×0.3=20÷100=1.8÷6=3.59－1.9=1.25×0.8=0.42÷0.7=1.5÷5=5.1÷0.3=家长检查并签字：年月日家长检查并签字：年月日2.3×0.4=5.6+5.4=0.25×4=6.36－2.6=列竖式计算。3.5×16=0.19×7.5=0.48×1.7验算：4号列竖式计算7.525÷0.38=78.6÷11=227.8÷0.34=(得数精确到百分位)（得数用循环小数表示）验算：计算下列各题。（能简算的要简算，并写出主要过程）5.65×1.8+4.35×1.82.5×1.25×3.29.76×0.72－0.76×0.72+0.7212.6×990.84÷7+0.36×823.4÷7.8－2.35.4+4.6×1590÷25÷463×10.1家长检查并签字：年月日9号解方程。1.8x=72x÷5.4=1.2x－32.5=94x+4.2=14.816+8x=404x－3×9=293.6x－0.8x=26.61.2x÷2=1202(3+x)=9.20.85(x－6)=5.10.5x+0.8x=0.395.4x+x=12.810号列竖式计算：36×5.518×3.063.45×21家长检查并签字：年月日家长检查并签字：年月日0.28×0.25150×0.120.87×1.50.4×0.0761.5×0.0626.5×0.0411号计算下面各题，怎样算简便就怎样算。28.3×0.1×2.758.36×0.5＋18.21.01×8.50.79×98＋0.79×20.48×1.250.25×5.8×0.4列竖式计算：52.78÷26=3.81÷75.87÷1.9验算：(得数保留两位小数)(得数保留两位小数)家长检查并签字：年月日12号用喜欢的方法计算。4.05÷0.5+10.7521.6÷0.8－1.2×56.8×2.7+2.7×3.28.4×6.9÷(6.44－4.14)0.38×1024.8÷2.5÷42.47×6.5+7.53×6.50.65×1014.12－1.78－1.2213号解下列方程：91÷X=1.31.2x÷2=60（x－4）×0.5=104X+1.2×5=24.48X－5X=276x－10.8=13.2列竖式计算：6.72÷6.4=0.054÷3.6=741÷0.13=（用乘法验算）家长检查并签字：年月日14号一、列竖式计算下面各题。（带星号的题得数保留两位小数）21.4×15=0.025×54=1.35×3.4=49×0.25=0.18×0.54=12×1.53=☆3.51×6.4☆1.98×0.25二、列竖式计算下面各题。（带三角题得数保留一位小数）60÷40=13.8÷30=6.3÷2.1=24.3÷0.6=9.24÷2.8=0.459÷0.9=△25.6÷27△0.578÷0.3615号一、用简便方法计算下面各题。1.25×8.81.25×16.3×85.6×10.13.2×0.25×1.25家长检查并签字：年月日2...
