人教版小学数学五年级上册口算心算天天练　全册

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1、人教版五年级（上）口算心算天天练（每天20分钟）学校姓名小数乘整数（一）一、直接写得数。5×2=25×4=125×8=0.5×2=0.25×4=1.25×8=36×10=24×40=75×20=0.36×10=0.24×40=7.5×20=5×200=125×80=29×10=0.5×200=0.125×80=0.29×10=2.5×2=0.5×10=0.6×8=2.1×2=2.8×10=0.04×20=5.6+0.4=4.7+2.3=4.5×2=6.9－2.5=7.2×8=0.62－0.32=二、列竖式计算。2.74×8=1.36×5=4.18×15=0.

2、38×35=小数乘整数（二）一、直接写得数。5.6×100=0.125×8=0.7×9=0.8×11=7.2+12.8=46.7－3.8=12.8+4=0.2×13=2.5×5=1.64+4.1=8.65×10=0.35×6=3.08×1=4.95×1000=69×0.1=0.4×5=0.325×100=2.5×8=0.125×4=3.28×0=7.2×1=0.25×40=1.25×8=5×0.24=4.5－0.05=5×0.12=24×0.5=4.8×5=2.8＋4.2=4.5×2=二、列竖式计算。7.45×220.5×60.64×155.5×24小数乘小

3、数（一）一、直接写得数。5×7=12×8=25×4=0.5×7=1.2×8=2.5×4=0.5×0.7=1.2×0.8=2.5×0.4=4.5×0.02=0.7×0.8=0.04×20=5.5×0.2=7.2×0.8=1.4×0.5=0.02×0.5=0.7×0.9=3.08×0.01=0.8×1.1=0.35×0.6=7.4－2.8=6.9×0.1=0.4×0.5=7×0.6=3.28×0.1=7.2×0.1=0.01×0.1=0.25×0.4=1.25×0.8=2.4×0.5=二、列竖式计算。6.24×4.50.29×0.340.321×4.29.65×

4、0.48小数乘小数（二）一、直接写得数。10.5×0.4=7.3＋2.7=8×0.125=0.61＋0.39=10－9.4=5.2×0.4=0.8×0.11=7.2＋12.8=2.3×100=4.1＋3.7=2.5×16=16－5.07=0.02×0.5=7.2－0.8=1.4×0.5=17.5＋32.5=1.02×0.2=5.02×0.3=1.2×6=0.26×0.3=8.4×0.02=0.8×0.05=0.8×0.13=0.34×0.2=8.08+0.92=0.5×2.2=0.3×0.5=1.25×4=3.27＋0.63=15.8×0=二、列竖式计算。2

5、4×54.532.6×1.90.28×0.1568×0.44小数乘小数（三）一、直接写得数。0.8×0.5=5.5×0.3=0.6×0.11=5.5＋5.5=0.54＋2.2=3.5－0.05=2×0.02=0.25×40=1.2×0.3=1.5×0.6=73.5×0.1=0.61＋0.39=46.5＋52.5=0.45×0.2=1.25×8=2.64-1.54=2.1×2=2.5×2=0.8×1.25=0.4×25=0.6×8=2.5×101=0.02×3.5=3.3×0.3=5.6×1=23.5×0.1=1.5×0.6=2.0×0.9=1.5×0.4=1

6、.8×0.5=二、判断积是几位小数。0.25×0.09（）2.003×1.5（）1.03×0.4（）1.024×4.28（）3.28×0.005（）2.5×1.4（）0.68×9（）2.6×15（）32.6×50（）0.39×0.7（）三、比大小1.21×1.3○1.215.7×0.9○5.73.27×4.5○3.27×0.51×4.4○0×4.49.6×0.85○0.85×9.624×0.65○24积的近似数一、直接写得数。60×0.5=32＋200=0.12×6=1.7＋5.8=5－4.45=0.2×0.4=9.8-6.8=6.89＋9.81=1.7×0

7、.4=2.8＋3.5=1.05×6=16×0.5=0.12×5=15.5－2.5=40×0.0.9=0.5＋2.5=9×0.2=0.9×0.3=0.1×6=2.1×0.7=0.6×0.15=20×0.05=1.2×0.3=0.3×0.9=6.2+3.8=5.5×3=9×0.05=0.33×2=9.6＋0.4=0.8×0.8=二、算一算（按要求保留积的小数位数）。保留一位小数:6.3×2.81.29×12.5保留两位小数:0.98×2.457.36×0.54连乘、乘加、乘减一、直接写得数3.4－1.4×2=              0.7+0.8×4＝   

8、6×0.6+3.4=4.8×0.5×2=7×1.1－