五年級(jí)數(shù)學(xué)上冊(cè)計(jì)算題專項(xiàng)重點(diǎn)知識(shí)部編版

#/5五年級(jí)數(shù)學(xué)上冊(cè)計(jì)算題專項(xiàng)重點(diǎn)知識(shí)部編版班級(jí)：姓名：1.解方程。4x+1.2=83x+5x+25=1508x-1.5X2.8=20x+3.6=12.85.7x-1.2x=13.52(x-3)=5.819.6x+13.8x=50.16x+5義6=1202.解方程。1.9X+0.5X=4.8X-2.5X0.8=17.9(6.8+0.5X)-2.2=22.81.5x=28.51.5x=28.512x－9x=8.79x+1.8=0.33.解方程。(1-25％)x=30x+5=4.26x=x=4.解方程。4x-2x=32(x-3)+2=7.55.用豎式計(jì)算下面各題。12.37+8.95=6.52-3.44=20-8.45=9.6+42.17=6.解方程。1.8x+0.8x=20.828.34-7.8=38.7^x=4.33.64+0.48=1.8X5+4x=13.83.85+1.5x=6.17.計(jì)算下面各題。元角12.4-S.0(5x-25)X6=90元角3.4+2.5(100-3x)+2二8元角+J7.8十口.9元角0.78.脫式計(jì)算下面各題。9.2+9.728+3.2X1.5元角2.5-o.a(2.55X1.5+1.5+6.45X1.5)+0.310.5+(5.1-4.4)+18.259.解方程[(8.3-6.8)X0.9+3.65]+2.51.6X=0.8X1.416(X—15)=1442X?2X?0.6=4.5列方程，并求出方程的解。(1)一個(gè)數(shù)的5倍比它的8倍少13.5,求這個(gè)數(shù)。x的2.4倍正好是96的一半。(3)已知@=0.6,b=0.2時(shí)，求2.5(3a+4b+2a)的值。(4)甲數(shù)是9.6，是乙數(shù)的4倍，乙數(shù)是多少？解方程。5.3+X=9.6 0.5X=102X-6=5.83.3X+1.7X=5.52X-6=5.812.解方程。2x-1.3X6=34.22x-1.5x=7.54X(5x+4)=485x-6X4=1204(6x+3)=686.8x+2.4x=73.613.用遞等式計(jì)算。(1)36+61.2-12

(2)(20—1.4X2)X0.4(3)(3.94+6.86)X0.8-814.口算下列各題。0.5X80= 0+0.73=5.3X99+5.3= 0.49+4.9=14.口算下列各題。0.5X80= 0+0.73=5.3X99+5.3= 0.49+4.9=2.5X4=0.8X125=3.12+0.01=0.56+0.7=15.直接寫出結(jié)果。aXx=nXn=bX8=bX1=3a+4a=10y—9y=3yX2=6aXa=16.列豎式計(jì)算，帶*的要驗(yàn)算。42.4-18.8=*415+4=*49X78=10.7-0.37=5.68+3.03=31.2-8.5=17.解方程。5151320x—-二一x+—=1x+66127 718.解方程并檢驗(yàn)。3x+4二407(x-20)二140(x+2)x2=x+6.5 3(x—1)=12列方程求出方程的解。(1)x加上72等于50與95