人教版五年級(jí)數(shù)學(xué)上冊(cè)計(jì)算專(zhuān)項(xiàng)練習(xí)59755

精品精品直接寫(xiě)出得數(shù)0.32X5=1.8—0.3=3.2-0.1二0.27—0.03=1.8X20=0.01—0.1=6.5X10=80X0.3=18X0.01=2.5-2.5—5=0—4.61=0.03X2.3=0.4X5=4.2—0.2=4.2-1.6二21.7—0.07=1.6X7=25.25—5=1.25X8=60X0.9=0.8X0.1二0—7.05=0.4X2.5二1.7+3.3X0.2二1.25X8=3.6—10=6.3+0.37二2.6—0.02=0.11X5=4.8—4=0.25X4=1.12X0.3=0.8X0.5二1.6X0.5=1.5X30=3.5+6.5X20二2.8—100=6.3+0.37二2.6—0.02=2.4X5=0.13X5=9.6—6=0.25X4=2.34X0.2=0.6X1.5=2.3X20=1—0.125=4.3+5.7—1.9=6.13X0=用豎式計(jì)算3.9—0.65=4.3+5.7—1.9=10—2.5=0.37X2.4=0.59X0.027=56.5X0.24=93.6-0.052=0.39—7.8=6.72—6.4=1.55—3.8"3.8—4.5"（得數(shù)保留一位小數(shù)）（得數(shù)保留兩位小數(shù)）遞等式計(jì)算,能簡(jiǎn)便的用簡(jiǎn)便方法計(jì)算23.4—5.2X3.20.25X0.89X42.35X4.64+5.360.39—7.8=6.72—6.4=1.55—3.8"3.8—4.5"（得數(shù)保留一位小數(shù)）（得數(shù)保留兩位小數(shù)）遞等式計(jì)算,能簡(jiǎn)便的用簡(jiǎn)便方法計(jì)算23.4—5.2X3.20.25X0.89X42.35X4.64+5.36X2.358.8X1.254.8X0.982.6X10.14.4X0.2512.5X1.36X0.825.2—12+2.943.5—15—1.450.44X2.52.25X0.4+0.631.04—3.2—4.73.26X10.1—0.1X3.260.125X9.8X80.44X2.5102X4.82.4X2.5(27.8—15.6)X0.89.12—57+4.841.2X2.5+0.8X2.52.33X0.25X4102X0.458.8X1.257.06X2.4—5.70.21—1.4+2.6解方程（一）加法方程7.9+x=19.95.8+x=90x+155.4=29079.4+x=95.56.x+55=129(二)減法方程x-6=19x-3.3=8.9x-25.8=95.49-x=4.573.2-x=52.587-x=22四）乘法方程、除法方程7x=494.4x=44x—9=93.3—x=0.32.8.8—x=4.4五）稍復(fù)雜的方程2x-97=34.26x-12.8X3=0.063(x+0.5)=215x+15=602x-20=412x-9x=8.72x-97=34.23(x+2.1)=10.53x+6=1813(x+5)=169(