Question

5·37÷3 o.624÷6 2·7÷6 3÷8 的竖式

Answer 1

.5×8= 3.6×0.4= 39.68×0= 47.6×1= rn4÷0.5= 12÷0.06= 12÷1.2= 3÷30= rn0.15×7= 3.2×6+3.2×4= 2.5×4×0.36=rn0.2+0.8×0.5= 6.03×1000= 10×0.6= 6.45×0.01= rn0.1×0.1= 0.24×0.5= 5.4＋3.6= 1.25－0.25=rn10.2×4.5＝ 2.5×6＝ 9×0.25＝ 0.125×4=rn1.25×8×0.5= 16×0.01= 1.78÷0.3= 0.27÷0.003=rn0.01÷0.1= 1.8×20= x-0.4x= 5d-2d=rn3.6÷0.4= 0.6×0.8＝ 2.4×3＝ 0.12×0.7＝rn4÷5＝ 1.6÷0.5＝ 0.2÷0.05＝ 2.5×2.3×4= rn1.5÷1.5＋1.5= 3.6－1.2÷2.4= 4.7×6＋4×4.7= rn0.5×4÷0.5×4= 38.5×0×0.38= 0.6×0.8= 3×0.9=rn2.5×0.4= 3.6×0.4 12.5×8= 50×0.04= 80×0.3= 1.1×9rnrn二、用竖式计算rn8.08－2.68＝ 5.546＋29.38＝ 17.04×0.26 ＝ 8.35×3.5＝rnrn三、竖式计算（得数保留一位小数）rn0.43×0.29≈ 52.6×0.23≈ 4.58×0.37≈rnrn四、竖式计算（得数保留两位小数）rn4.3×8.14≈ 27.6×0.45≈ 27.6×0.45≈rnrn20÷12≈ 2.9×1.8≈ 5.08×0.25≈rnrn五、竖式计算（得数保留三位小数）rn2.5÷0.7= 2.5÷0.7= 3.25×9.04=rnrn六、竖式计算（用循环小数表示商）rn36.8÷16≈ 10.1÷3.3≈ 15.3÷11≈ 0.78÷1≈rnrn七、脱式计算rn（2.65+2.77）÷（1.98-0.98）= 3.7×91.6+6.3×91.6=rnrn0.45×12×0.2= 6.2×2.1－2.12.8－2.8×0.15=rnrn2.8×1.43＋0.57= 10－6.06＋8.5=rnrn6×0.25×1.8= 144÷3.6＋27.2=rnrn0.87×3.16+4.64= 6.8×0.75÷0.5=rnrn13.75÷0.125–2.75= 53+23.4÷7.2=rnrn2.881÷0.43－0.24×3.5= 28-(3.4+1.25×2.4)=rnrn（31.8+3.2×4）÷5= 31.5×4÷(6+3)=rnrn0.64×25×7.8+2.2= 2÷2.5+2.5÷2=rnrn194－64.8÷1.8×0.9= 36.72÷4.25×9.9=rnrn5180－705×6= 24÷2.4－2.5×0.8=rnrn3.416÷（0.016×35）=rnrn八、用简便方法计算下面各题rn5.12＋2.54＋4.88= 12.5×17.8×0.8= 9.9×2.5=rnrn9.4×5.8＋10.6×5.8= 0.125×0.32×0.25= 9.6+9.6×99=rnrn2.8×7.6+1.4×2.8 +2.8= 6.3×10.1= 0.25×3.2×12.5=rnrn12.5×9.12.5×8.7= 3.7×91.6+6.3×91.6=rnrn16.84÷40÷0.25= 12.5×0.4×2.5×8= 9.5×101=rnrn4.2×7.8+2.2×4.2= 2.55×7.1+2.45×7.1=rnrn九、解方程rn4(x+0.3)=4.8 1.2x-0.8x=9.6 20+x=36rnrn7x-55=59 0.7x=4.2 （10-7.5）x=1rnrnX×1.8=0.972 0.06×X=1.02 X÷0.13=0.7rnrn12.4÷X=31rnrn十、列式计算rn（1）一个数的25倍是37.75,这个数是多少?rnrn（2）比47.88与3.8的商大42.5的数是多少?rnrn（3）1.25乘4.2减5,差是多少?rnrn（4）比4.7的1.5倍多3.05的数是多少?rnrn（5）一个数的25倍是37.5,这个数是多少?rnrn（6）比47.88与3.8的商大42.5的数是多少?rnrn（7）60比一个数的3倍少30,这个数是多少?rnrn（8）一个数的4倍比60多24,这个数是多少?rnrn（9）用14.81与5.19的和,乘以它们的差,积是多少?rnrn（10）126.8与15.7的和,乘以1.02,积是多少?rnrn（11）0.6乘0.8的积加上0.12后,再除以1.2,商是多少?rnrn十一、应用题rn（1）工程队开凿一条长0.7千米的隧道,原来每天开凿0.024千米,开凿了15天.余下的用10天完成.平均每天应开凿多少天?rnrn(2) 六年级同学植树276棵,比五年级植树棵数的1.5倍还多20棵,五年级植树多少棵?rnrn(3) 圆明小学在抗洪救灾募捐活动中,五、六年级一共捐款902元,五年级有4个班,平均每班捐款90.5元,六年级也有4个班,平均每班捐款多少元?鐧惧害鍦板浘