（）用豎式計(jì)算下面各題。①3.5＋1.78 ②3.54－1.78 ③5.23＋12.37 ④12.37－5.23⑤13.2－6.89⑨46.－2.48?8.＋5.64?126.39215.＋7.84

⑥7.56＋2.5⑩1.16＋0.34?2.46＋0.695?5.1－0.96228.03－6.95

⑦23.62＋18.7?4.78＋3.56?8.6－6.48?9.2－3.45237.96＋2.7

⑧8.25－4.17?13.25－9.48?15.07－9.7?7.6＋3.28248.1－3.27（）脫式計(jì)算下面各題。①23.＋12.8＋33.9 ②2.5＋2.39＋4.57 ③6.32＋2.08＋3.05④99.－45－23.1⑦23.＋15.9－30.8⑩38.＋（56.4－26.7）?3.4＋（8.13－5.89）?36.（65.8－48.6）

⑤85.－1.34－25.8⑧4.5－2.39＋3.27?9.8－（2.38＋3.56）?（9.6－8.78）＋2.39?30.6（89.7－78.9）

⑥63.9－32.8－1.57⑨9.82－3.65＋24.6?50.8－（13.9＋26.7）?100－（45.6＋32.1）?60.9（78.5－62.8）（）用簡便方法計(jì)算下面各題。①6.＋4.8＋3.1 ②0.45＋6.22＋3.78 ③15.89＋(6.75－5.89)④4.0＋5.4＋0.98 ⑤5.1－1.8－3.2⑦3.6＋7.56－2.68 ⑧7.8＋2.34－0.85＋4.66⑩3.8＋2.9＋0.1＋9.1 ?9.64.8－3.6?5.2＋2.86－0.6＋1.63?13.3－4.68＋2.65?66.8－8.66－1.34 ?36.－3.9－6.1

⑥13.75－(3.75＋6.48)⑨35.6－1.8－15.6－7.2?7.14－0.53－2.47?73.8－1.64－13.8－5.36?32＋4.9－0.9（）用豎式計(jì)算下面各題。①2.3×11.2＝ ②6.9×0.1＝ ③2.3×6.2＝ ④0.58×0.39＝⑤6.73.3＝⑨6.5×084＝?0.8×37＝?40.86.7＝210.37×054＝

⑥0.66×0.2＝⑩56×1.33＝?3.5×16＝?3.5×16＝221.06×25＝

⑦3.7×4.6＝?3.02×2.5＝?12.5×84＝?12.5×3.6＝237.5×8.6＝

⑧0.29×57＝?2.6×1.8＝⑥1.8×2.3＝?1.8×2.3＝249.6×0.39＝（）用豎式計(jì)算下面各題。①27×0.43＝ ②1.7×45＝ ③1.2×1.04＝ ④0.37×34＝⑤86×1.2＝⑨0.8×25＝?2.6×3.7＝?1.11×19＝210.98×45＝

⑥2.4×0.15＝⑩2.58×89?1.56×0.18＝?0.36×1.3＝223.2×2.5＝

⑦21×2.4＝?5.8×0.96＝?1.03×5.03＝?2.5×6.5＝2325.2×2.9＝

⑧4.32×58＝?3.6×0.74＝?0.208×82＝?0.3×2.6＝242.68×8.1＝（）用豎式計(jì)算下面各題。①5.2÷6＝ ②34.5÷1.5＝ ③5.6÷0.04＝ ④1.8÷12＝⑤73.8÷1.2＝⑨6.3÷0.14＝?1.26÷18＝?28.6÷11＝21328÷1.6＝

⑥7.83÷9＝⑩72÷15＝?43.5÷29＝?20.4÷24＝221.35÷27＝

⑦4.08÷0.8＝?14.21÷7＝?18.9÷0.27＝?3.64÷52＝237.65÷0.85＝

⑧0.54÷0.6＝?24÷1.5＝?1.35÷15＝?156÷0.12＝2412.6÷0.28＝（）用豎式計(jì)算下面各題。①30.÷7＝ ②12.88÷2＝ ③75.45÷15＝ ④36÷0.48＝⑤16.6÷4.5＝⑨5.7÷2.4＝?0.51÷2.2＝?0.544÷0.025＝2125.2÷6＝

⑥64.6÷0.3＝⑩18.5÷0.7＝?7.1÷2.5＝?203.5÷11＝2234.5÷1.5＝

⑦1.876÷0.28＝?62.1÷0.03＝?1.998÷0.54＝?24÷15＝235.6÷0.04＝

⑧2.622÷6.9＝?1.89÷54＝?1.28÷16＝?3.64÷52＝241.8÷12＝（）脫式計(jì)算下面各題。①45÷2.3－1.4） ②7.20.4－7.2×0.4 ③8.57×9.9－0.857④15.8＋1.7－9.12⑦3.9＋34.3×0.2⑩2.5÷1.7－0.59?3.÷（0.5＋0.×4）?54÷3.94＋6.8）

⑤0.4[（5.2－4.6）×0.8]⑧1.2(9.6÷2.4)÷4.8?0.4÷[（3.2﹣0.5）÷9]?6.4÷[（1.4－0.8）×0.9]?(3.＋0.12)÷0.8

⑥32.4－(14.5－7.6)⑨3.2×1.5＋4.8÷2.5?（1.2＋1.3）÷0.25?32＋4.9－0.9?0.175÷0.25×4（）用簡便方法計(jì)算下面各題。①0.25×8.5×4 ②12.5×0.96×0.8 ③0.25×0.73×4④4.36×12.5×8⑦3.2×0.25×12.5⑩4.×10.1?0.32×403?56.×99＋56.5

⑤0.25×16.2×4⑧0.25×36?3.6102?3.65×10.1?7.0910.8－0.8×7.09

⑥1.25×2.5×32⑨(1.25－0.125)×8?0.39×199?0.85×9.9?9.7×99＋9.7（）用簡便方法計(jì)算下面各題。①3.7×3.5＋6.2×3.5 ②15.×2.1－15.6×1.1 ③3.83×4.56＋3.83×5.44④6.×99＋56.5⑦4.×99＋4.2⑩2.3×16+2.3×23+2.3?4.×7.8＋78×0.52?2.×9.9＋1.27

⑤7.0×10.8－0.8×7.09⑧27.×3.7－7.5×3.7?5.4×1-5.4?10.×0.35－9.6×0.35?3.6×4.7－36.5×0.37

⑥9.7×99＋9.7⑨3.9×2.7＋3.9×7.3?10.7×16.1-15.1×10.7?7.6×0.8＋0.2×7.6?101×0.87-0.91×87（）用簡便方法計(jì)算下面各題。①1÷0.25÷0.4 ②101.25÷0.8 ③80÷0.5÷0.4④10÷0.25÷8⑦6.÷0.8÷1.25⑩9.÷0.8÷0.4?3.5÷2.5÷0.4?8.÷4.5

⑤6÷0.÷0.25⑧4.20.35?17.÷(1.78×4)?0.4÷1.4?3.9÷1.3×5）

⑥300÷2.5÷0.4⑨5.6÷3.5?320÷5÷8?3.9÷1.3÷0.3?15÷（0.15×0.4）（）解方程。①(0.＋x)＋x＝9.8÷2 ②2(＋x＋0.5)＝9.8 ③25000＋x＝6x④320＝450＋5xx⑦7.×2x＝15⑩7(－2)＝2x＋3?7x5.3＝7.4?6x－12.8×30.06

⑤x0.8x＝6⑧x0.7x＝3.6?18(－2)＝270?30÷x25＝85?3(＋0.5)＝21

⑥12x－8x＝4.8⑨3x－8＝16?12x＝300－4x?1.4×8－2x＝6?5×3－x÷2＝8（）解方程。①x÷0.75690 ②x÷59＝21 ③48－27＋5x＝31④10.＋x＋21＝56⑦(x－140)÷704⑩32－29＝3?10－20x＝20?23－23＝23

⑤x＋2＋18＝78⑧0.1(＋6)＝3.3×0.4?5x5＝15?55x25x＝60?4x20＝0

⑥(200－x)÷5＝30⑨4(x－5.6)＝1.6?89x－9＝80?76y－75＝1?80y＋20＝100（）解方程。①5(＋3)＝35 ②x＋3.7＋2＝16.1 ③14x＋3x－1.2x＝158④0.5×5－4x＝0.6⑦x(3－0.5)＝12⑩10－27＝13?x13.4＋5.2＝1.57?5(3－2x)＝2.×5

⑤0.7(x0.9)＝42⑧7.4－(－2.1)＝6?5x＋2＝1.4＋0.07?0.425－3.5x＝6.5?5x＋2＝1.4＋0.07

⑥1.3x＋2.4×3＝12.4⑨2x＋34＝54?6x－3x＝6÷5?7x＋3×1.4x＝0.2×56?6x－3x＝6÷5（）解方程。①x13.4＋5.2＝1.57 ②0.×25－3.5x＝6.