⑵3.6＋2.4＝⑶0.5×0.8＝⑷0.25×0.4＝⑸1.5×4＝⑹7—1.5×2＝⑺(5.5—1.5)÷2＝⑻1.23×0＝⑼22.4÷4＝⑽6÷1.5＝⑾1.2÷1.2＝⑿1.2÷0.8＝⒀6÷0.5＝⒁0.25÷0.5＝⒂0.32÷0.04＝⒃0.2×2.7＝⒄0.04×500＝⒅190cm2＝( )dm2⒆0.46×( )＝46 ⒇3.5×3＝⑵14.4＋10.5＝⑶17.5÷7＝⑷3.6÷1.2＝⑸5.49÷0.9＝⑹7.6÷0.19＝⑺109.2÷9.1＝⑻9.8÷0.4＝⑼1.1×1.1＝⑽0.1×0.9—0.01＝⑾0.54千克＝( )克⑿3.2×10.1＝3.2×( )＋3.2×( ) ⒀6.2×0.3＝⒁2.5×0.8＝⒂0.06×5＝⒃0.16×25＝⒄5×2.1＝⒅0.045×0＝⒆当a＝0.4时，3a2＝( )⒇5.4厘米＝( )米⑵19.9÷0.199＝⑶2.7÷90＝⑷3.5÷0.07＝⑸4.5÷45＝⑹5.2×100＝⑺1.32×0.2＝⑻4.5÷1.37＝( )÷137⑼2.05×4＝⑽0÷0.356×48＝⑾10÷0.2＝⑿74×0.01＝⒀0.25×4＝⒁3.6÷0.09＝⒂3.5÷7×0＝⒃8.7÷2.9＝⒄12.3＋6.3＝⒅2.1÷70＝⒆0.36÷18＝⒇6.3÷0.07＝⑵0.1×0.2＝⑶0.13×0.6＝⑷(9.7—4.1)÷7＝⑸8.3×5＝⑹21.7÷7＝⑺0.47×0.3＝⑻0.12÷0.3＝⑼0.52×( )＝26⑽0.302千克＝( )克⑾230厘米＝( )米⑿0.22×0.9＝⒀0.2×0.6—0.03＝⒁19.5—2.7×7＝⒂0.78÷2.6＝⒃0.31×0.6＝⒄7÷1.4＝⒅3.56—1.21×2＝⒆1.1×9＝⒇1.9＋12.3＝⑵0.2×0.3＝⑶(2.3—1.5)÷0.3＝⑷13.6÷8＝⑸0.23×0.4＝⑹0.12÷0.4＝⑺0.21×( )＝210⑻7.3×5＝⑼7×0.9—2.5＝⑽12.6—2.1×6＝⑾1350cm2＝( )dm2⑿0.32×0.7＝⒀4.7×10.2＝4.7×( )＋4.7×( ) ⒁9.8÷2.3×0＝⒂8.9—2.5×3＝⒃0.77÷1.1＝⒄6÷1.2＝⒅1.2×7＝⒆0.14×0.7＝⒇11.6＋2.3＝⑵0.2×0.9＝⑶(6.3—2.3)÷0.8＝⑷18.8—3.1×6＝⑸35.7÷7＝⑹6.3×8＝⑺9×0.9—3.6＝⑻15.9—2.7×5＝⑼2210cm2＝( )dm2⑽0.15×0.9＝⑾当a＝0.6时，2a2＝( ) ⑿12.9—2.3×5＝⒀8.77—0÷45.32＝⒁0.31×0.5＝⒂0.26×( )＝130⒃10.9—3.5×3＝⒄0.78÷1.3＝⒅9÷1.8＝⒆0.22×0.8＝⒇3.4＋21.3＝⑵0.2×0.2＝⑶(6.7—1.3)÷9＝⑷16.8÷7＝⑸0.23×0.5＝⑹7÷3.5＝⑺15.7—2.3×6＝⑻0.12÷0.2＝⑼0.33×0.7＝⑽7×1.2—2.3＝⑾12.9—3.6×3＝⑿5.98×0÷3.69＝⒀0.12×0.9＝⒁0.21千克＝( )克⒂5.21×9.9＝5.21×( )—5.21×( ) ⒃9.2×8＝⒄0.27×( )＝270⒅9.68—2.3×4＝⒆0.75÷2.5＝⒇7.2＋2.3＝⑵0.22×0.7＝⑶33.6÷4＝⑷13.9—1.2×9＝⑸8×1.2—5.8＝⑹0.15×0.4＝⑺3270cm2＝( )dm2⑻16.7—2.3×6＝⑼6.2×10.2＝6.2×( )＋6.2×( ) ⑽0.31×0.4＝⑾0.28×( )＝28⑿17.3—7.4×2＝⒀0.76÷1.9＝⒁12.3—2.4＝⒂0.12÷0.6＝⒃9.87—2.4×4＝⒄5÷2.5＝⒅(7.23—2.73)÷9＝⒆0.2×0.8＝⒇11.5＋10.3＝⑵(6.9—1.5)÷9＝⑶32.5÷5＝⑷15.9—2.6×6＝⑸0.15÷0.5＝⑹0.29×( )＝290⑺0.15×0.7＝⑻9520cm2＝( )dm2⑼9.6—1.4×6＝⑽9.65÷12×0＝⑾0.23×0.6＝⑿0.109千克＝( )克⒀9.2—1.8×4＝⒁7×1.4—5.4＝⒂0.34×0.7＝⒃0.75÷1.5＝⒄19.2—2.3×7＝⒅12÷2.4＝⒆0.2×0.7＝⒇9.6＋2.1＝⑵20.4÷4＝⑶0.15÷0.3＝⑷0.31×0.3＝⑸7×1.3—6.5＝⑹8.51×9.9＝8.51×( )—8.51×( )⑺0.2×0.6＝⑻6.7厘米＝( )米⑼8.62—0÷12.54＝⑽8.2×8＝⑾0.31×( )＝310⑿13.9—2.3×5＝⒀0.74÷3.7＝⒁0.15×0.8＝⒂13÷6.5＝⒃19.8—3.1×6＝⒄(12.9—6.5)÷8＝⒅1.2×8＝⒆0.22×0.6＝⒇8.2＋3.4＝⑵7.2×8＝⑶(13.9—7.3)÷6＝⑷36.6÷6＝⑸0.14×0.3＝⑹0.15÷0.2＝⑺15.6—1.9×7＝⑻0.33×( )＝330⑼0.35×0.7＝⑽8×0.9—6.2＝⑾0.5×0.2＝⑿5.36÷9.8×0＝⒀20.6—7.1×2＝⒁8.7×10.2＝8.7×( )＋8.7×( ) ⒂920厘米＝( )米⒃0.23×0.7＝⒄0.72÷3.6＝⒅17.7—1.3×13＝⒆14÷2.8＝⒇5.3＋22.4＝⑵0.3×0.3＝⑶11÷5.5＝⑷0.16÷0.4＝⑸0.32×( )＝160⑹1.5×7—5.9＝⑺0.29×0.9＝⑻2530cm2＝( )dm2⑼0.356千克＝( )克⑽5.6—0.7×8＝⑾6.95÷3.21×0＝⑿9.68—0÷25.84＝⒀0.12×0.8＝⒁9.8×10.1＝9.8×( )＋9.8×( ) ⒂0.72÷2.4＝⒃4.2×8＝⒄25.8÷6＝⒅(23.5—16.3)÷9＝⒆0.22×0.5＝⒇21.1＋3.8＝⑵6.2×8＝⑶(19.7—15.5)÷7＝⑷3.9—1.2×3＝⑸19.2÷6＝⑹8÷3.2＝⑺0.16×0.6＝⑻0.72÷1.8＝⑼0.36×0.7＝⑽8.62×9.9＝8.62×( )—8.62×( ) ⑾9.8—2.3×4＝⑿260厘米＝( )米⒀0.3×0.4＝⒁2×0.8—1.35＝⒂11.9—1.5×7＝⒃0.35×( )＝140⒄0.23×0.8＝⒅0.16÷0.8＝⒆1.2×9＝⒇1.89＋2.1＝⑵25.6÷8＝⑶15.7—2.3×6＝⑷8÷1.6＝⑸6.9—0.8×8＝⑹0.12÷0.5＝⑺0.34×( )＝170⑻8×0.6—2.35＝⑼0.22×0.4＝⑽3.91÷0.27×0＝⑾2.65—0÷88.32＝⑿0.62千克＝( )克⒀8.5×10.1＝8.5×( )＋8.5×( ) ⒁0.29×0.8＝⒂0.36×( )＝180⒃5.2×8＝⒄0.69÷2.3＝⒅(13.8—8.4)÷6＝⒆0.3×0.5＝⒇7.2＋11.8＝⑵10.1×7＝⑶(9.6—3.2)÷8＝⑷8.5—1.2×7＝⑸31.5÷9＝⑹10÷2.5＝⑺0.16×0.7＝⑻0.37×0.7＝⑼0.68÷3.4＝⑽0.37×( )＝37⑾14.4—1.3×9＝⑿203厘米＝( )米⒀0.34千克＝( )克⒁0.23×0.9＝⒂当a＝0.8时，5a2＝( ) ⒃59.8×0÷7.5＝⒄0.9×0.9—0.54＝⒅0.18÷0.2＝⒆0.3×0.6＝⒇3.8＋5.1＝⑵0.3×0.7＝⑶39.2÷7＝⑷12.7—1.2×10＝⑸9÷3.6＝⑹0.38×0.6＝⑺0.17÷0.5＝⑻0.38×( )＝190⑼0.29×0.7＝⑽6×0.8—2.34＝⑾1070cm2＝( )dm2⑿6.97×9.9＝6.97×( )—6.97×( ) ⒀54.9—0÷52.86＝⒁9.1×7＝⒂45.6—12.3×3＝⒃10.3×5＝⒄0.68÷1.7＝⒅(8.2—5.5)÷9＝⒆0.22×0.3＝⒇12.5＋11.3＝⑵0.3×0.8＝⑶(6.5—5.5)÷5＝⑷17.5—2.4×6＝⑸41.6÷8＝⑹0.16×0.8＝⑺13÷5.2＝⑻0.66÷3.3＝⑼0.39×0.7＝⑽0.39×( )＝390 ⑾18.7—3.5×5＝⑿190厘米＝( )米⒀0.24×0.4＝⒁1.5÷30＝⒂8.62÷2.1×0＝⒃15.3—2.3×6＝⒄3×0.9—1.9＝⒅0.18÷0.6＝⒆8.1×7＝⒇11.6＋8.7＝⑵0.21×0.9＝⑶17.5÷5＝⑷12÷2.4＝⑸0.18÷0.3＝⑹7.1×7＝⑺0.29×0.6＝⑻0.41×( )＝41⑼15.9—1.2×12＝⑽0.7×0.8—0.35＝⑾0.42×0.8＝⑿0.94千克＝( )克⒀9.3—1.8×5＝⒁8.89—0÷58.9＝⒂5.6÷70＝⒃15.3＋5.1＝⒄0.66÷2.2＝⒅(13.7—9.5)÷6＝⒆1.3×7＝⒇0.3×0.9＝⑵(8.1—2.5)÷7＝⑶47.7÷9＝⑷6.1×7＝⑸0.24×0.5＝⑹0.18÷0.9＝⑺54.3÷2.9×0＝⑻210厘米＝( )米⑼3.5÷50＝⑽0.16×0.9＝⑾0.8×9—6.4＝⑿8.6—3.2×2＝⒀0.42×( )＝21 ⒁0.39×0.4＝⒂0.66÷1.1＝⒃8.4—2.5×3＝⒄3÷1.2＝⒅1.3×8＝⒆0.4×0.4＝⒇11.2＋5.6＝⑵0.5×0.4＝⑶4÷1.6＝⑷0.29×0.5＝⑸0.21÷0.3＝⑹72.3—0÷89.36＝⑺61厘米＝( )米⑻6.35×9.9＝6.35×( )—6.35×( )⑼12.3＋8.1＝⑽0.5×7—2.51＝⑾9.1—3.2×2＝⑿0.43×( )＝43⒀0.33×0.8＝⒁0.65÷1.3＝⒂10.9—3.3×3＝⒃27.2÷4＝⒄0.21×0.8＝⒅(9.5—4.5)÷2.5＝⒆5.1×7＝⒇13.6＋5.1＝⑵0.6×0.4＝⑶(9.8—1.7)÷0.9＝⑷35.1÷5＝⑸0.21÷0.7＝⑹0.44×( )＝22⑺0.17×0.2＝⑻910厘米＝( )米⑼5.9×10.1＝5.9×( )＋5.9×( ) ⑽9.4—2.4×3＝⑾当a＝0.5时，4a2＝( )⑿6.39÷5.8×0＝⒀0.24×0.6＝⒁0.27千克＝( )克⒂2.4×0.5—0.81＝⒃0.64÷6.4＝⒄7÷2.8＝⒅4.1×8＝⒆0.36×0.8＝⒇3.5＋2.7＝⑵55.8÷9＝⑶12.6—3.1×4＝⑷0.24÷0.6＝⑸0.34×0.8＝⑹2.3×0.6—0.61＝⑺7.9—1.2×6＝⑻0.33千克＝( )克⑼0.29×0.4＝⑽52.3×9.9＝52.3×( )—52.3×( ) ⑾4.9—1.2×4＝⑿8.65—0÷2.31＝⒀3.1×8＝⒁0.44×( )＝440⒂0.64÷1.6＝⒃11÷4.4＝⒄(10.9—9.7)÷3＝⒅0.21×0.7＝⒆0.7×0.4＝⒇4.5＋8.1＝⑵2.9×8＝⑶(9.8—5.8)÷8＝⑷45.6÷6＝⑸0.24÷0.3＝⑹0.45×( )＝90⑺0.17×0.3＝⑻2010cm2＝( )dm2⑼5.64÷2.3×0＝⑽9.8—1.3×7＝⑾3.6÷90＝⑿430厘米＝( )米⒀0.24×0.7＝⒁0.6×5—1.72＝⒂1.032千克＝( )克⒃0.63÷2.1＝⒄12÷4.8＝⒅0.37×0.8＝⒆0.8×0.4＝⒇3.52＋1.23＝⑵0.9×0.4＝⑶0.64÷3.2＝⑷0.9×5—2.9＝⑸0.29×0.3＝⑹1.3×9＝⑺240厘米＝( )米⑻2.5×8＝⑼9.36×0÷5.32＝⑽2.94×9.9＝2.94×( )—2.94×( ) ⑾0.45×( )＝135⑿0.24÷0.4＝⒀2.36＋2.4＝⒁13÷5.2＝⒂5.3—0.5×9＝⒃27.2÷8＝⒄(13.7—9.2)÷9＝⒅0.21×0.6＝⒆0.38×0.8＝⒇5.21＋1.42＝⑵0.5×0.5＝⑶2.4×8＝⑷(21.7—15.4)÷7＝⑸23.4÷9＝⑹0.39×0.8＝⑺14÷5.6＝⑻6.2—1.2×5＝⑼0.27÷0.9＝⑽4.3＋6.2＝⑾0.46×( )＝230 ⑿9.3—1.2×7＝⒀5÷2.5—1.35＝⒁0.24×0.8＝⒂92厘米＝( )米⒃9.4—1.4×6＝⒄0.58÷2.9＝⒅0.17×0.4＝⒆1.4×7＝⒇3.16＋6.24＝⑵0.28×0.9＝⑶0.24÷0.8＝⑷8.3—2.3×3＝⑸0.47×( )＝47⑹0.51×0.8＝⑺0.1÷0.02—2.35＝⑻8.2—1.3×6＝⑼9厘米＝( )米⑽5.23＋4.4＝⑾1.4×8＝⑿0.62÷3.1＝⒀16÷6.4＝⒁9.5—1.3×6＝⒂22.5÷3＝⒃9.2—0.9×9＝⒄(6.9—3.7)÷8＝⒅2.3×8＝⒆0.21×0.5＝⒇0.5×0.6＝⑵(9.5—2.3)÷9＝⑶61.6÷8＝⑷2.1×9＝⑸0.24×0.9＝⑹15÷7.5＝⑺0.28÷0.4＝⑻4.9—0.6×8＝⑼0.49×( )＝49⑽430cm2＝( )dm2⑾0.17×0.5＝⑿5.62×0÷1.32＝⒀15.9×9.9＝15.9×( )—15.9×( ) ⒁0.52×0.8＝⒂9.54千克＝( )克⒃2.6—0.3×7＝⒄8÷1.6—3.51＝⒅6.32＋5.21＝⒆0.56÷2.8＝⒇0.5×0.7＝⑵17÷6.8＝⑶0.27÷0.3＝⑷0.48×( )＝24⑸0.28×0.8＝⑹9÷1.8—1.56＝⑺6.3×10.1＝6.3×( )＋6.3×( )⑻5.4—0.6×5＝⑼9.68×0÷3.68＝⑽4.2÷70＝⑾0.5×0.8＝⑿513厘米＝( )米⒀5.9—0.6×3＝⒁0.57÷1.9＝⒂0.53×0.8＝⒃33.6÷7＝⒄10.6—1.22×5＝⒅(6.3—1.5)÷6＝⒆0.21×0.4＝⒇9.1＋7.25＝⑵(3.8—2.9)÷9＝⑶91.7÷7＝⑷0.54×0.8＝⑸18÷3.6＝⑹3.8—0.2×9＝⑺0.51×( )＝510⑻7÷1.4—2.89＝⑼0.17×0.6＝⑽430厘米＝( )米⑾6.7—0.9×7＝⑿9.62÷8.32×0＝⒀1.4×9＝⒁0.25×0.3＝⒂7.3×9.9＝7.3×( )—7.3×( ) ⒃3070cm2＝( )dm2⒄0.56÷1.4＝⒅0.32÷0.4＝⒆12.1＋5.62＝⒇0.5×0.9＝⑵2.2×8＝⑶17÷3.4＝⑷0.28÷0.7＝⑸1.72—0.21×7＝⑹0.32÷0.8＝⑺9.3—3.1×3＝⑻0.52×( )＝26⑼0.28×0.7＝⑽6÷1.5—1.69＝⑾15.32×0÷7.25＝⑿5.9—0.6×7＝⒀710厘米＝( )米⒁0.55÷2.2＝⒂0.56×0.8＝⒃35.2÷8＝⒄(9.7—7.6)÷21＝⒅0.21×0.3＝⒆0.6×0.6＝⒇5.12＋6.9＝⑵(48—44)÷8＝⑶38.7÷9＝⑷0.57×0.8＝⑸0.55÷1.1＝⑹9.7—2.3×4＝⑺0.52×( )＝520⑻0.17×0.7＝⑼1.2÷0.2—4.32＝⑽6.1×9.9＝6.1×( )—6.1×( ) ⑾840厘米＝( )米⑿5920cm2＝( )dm2⒀0.25×0.5＝⒁0.35÷0.7＝⒂2.3—0.3×7＝⒃18÷1.8＝⒄5.9—0.5×8＝⒅9.11＋2.25＝⒆2.1×8＝⒇0.6×0.7＝⑵18÷2.4＝⑶0.35÷0.5＝⑷6.7×10.1＝6.7×( )＋6.7×( )⑸5.98×0÷15.32＝⑹0.58×0.8＝⑺270cm2＝( )dm2⑻9.1—1.5×5＝⑼0.06千克＝( )克⑽8.2＋1.2＝⑾1.3÷1.3—0.57＝⑿0.28×0.6＝⒀0.53×( )＝53⒁0.55÷5.5＝⒂6.8—0.8×4＝⒃43.2÷6＝⒄(23—21)÷5＝⒅0.21×0.2＝⒆3.65＋2.41＝⒇0.6×0.8＝⑵0.6×0.9＝⑶(8.5—5.3)÷16＝⑷45.6÷8＝⑸0.53×( )＝106⑹1.4÷0.2—4.37＝⑺0.17×0.8＝⑻0.012千克＝( )克⑼4.9×10.1＝4.9×( )＋4.9×( ) ⑽6.9—2.3×3＝⑾0÷2.31×8.65＝⑿当a＝0.7时，2a2＝( )⒀0.25×0.7＝⒁360厘米＝( )米⒂0.54÷2.7＝⒃12.6—2.3×5＝⒄0.42÷0.7＝⒅13÷1.3＝⒆0.61×0.8＝⒇2.31＋5.42＝⑵2.1×7＝⑶12÷1.2＝⑷0.42÷0.6＝⑸0.54×( )＝54⑹1.5÷0.5—2.12＝⑺0.59×0.8＝⑻5.4÷90＝⑼15.68×0÷8.23＝⑽5.8—0.7×7＝⑾215厘米＝( )米⑿13.4—3.2×4＝⒀0.52÷2.6＝⒁9.63＋2.31＝⒂0.28×0.5＝⒃53.9÷7＝⒄(21.5—14.3)÷9＝⒅1.5×7＝⒆0.19×0.9＝⒇0.7×0.7＝⑵(16.3—12.3)÷8＝⑶15.5—2.1×7＝⑷57.4÷7＝⑸0.62×0.7＝⑹0.54×( )＝27⑺32厘米＝( )米⑻6.3÷70＝⑼0÷8.25×9.63＝⑽0.17×0.9＝⑾1.6÷0.4—1.59＝⑿6.3—0.5×9＝⒀0.48÷2.4＝⒁0.25×0.9＝⒂0.45÷0.9＝⒃16.9—2.1×8＝⒄15÷1.5＝⒅1.5×9＝⒆0.7×0.8＝⒇2.36＋8.21＝⑵0.7×0.9＝⑶14÷1.4＝⑷0.45÷0.5＝⑸17.7—2.6×6＝⑹0.098千克＝( )克⑺5.3×10.1＝5.3×( )＋5.3×( )⑻0.61×0.7＝⑼3.9×9.9＝3.9×( )—3.9×( ) ⑽59.6×0÷85.2＝⑾9.7—2.1×4＝⑿61厘米＝( )米⒀1.6÷0.2—5.97＝⒁63.6＋2.11＝⒂0.55×( )＝22⒃0.48÷1.6＝⒄0.28×0.4＝⒅56.7÷9＝⒆(17.9—15.4)÷5＝⒇0.19×0.8＝⑵0.8×0.9＝⑶1.8×9＝⑷(12.5—10.7)÷9＝⑸36.8÷4＝⑹0.18×0.2＝⑺0.56÷0.7＝⑻1.7÷0.17—6.37＝⑼6.4×9.9＝6.4×( )—6.4×( ) ⑽0÷15.2×8.65＝⑾0.26×0.4＝⑿53厘米＝( )米⒀6.1—0.7×8＝⒁0.654千克＝( )克⒂0.55×( )＝55⒃22.11＋3.54＝⒄0.45÷1.5＝⒅17.3—2.4×6＝⒆17÷1.7＝⒇0.64×0.7＝⑵16÷1.6＝⑶19.1—3.1×4＝⑷0.49÷0.7＝⑸0.63×0.7＝⑹0.46÷2.3＝⑺1.8÷3.6—0.23＝⑻0.72千克＝( )克⑼25厘米＝( )米⑽0.28×0.3＝⑾当a＝0.9时，3a2＝( ) ⑿21.5×0÷8.92＝⒀1.8×8＝⒁0.56×( )＝28⒂6.2—0.8×7＝⒃58.2÷6＝⒄(23.5—18.1)÷9＝⒅0.19×0.7＝⒆0.8×0.8＝⒇6.35＋9.14＝⑵0.9×0.9＝⑶27.9÷9＝⑷0.56÷0.8＝⑸0.56×( )＝560⑹1.8÷0.2—6.33＝⑺0.18×0.3＝⑻0.035千克＝( )克⑼5.7—0.9×6＝⑽33厘米＝( )米⑾1.8×7＝⑿110cm2＝( )dm2⒀0.26×0.5＝⒁0÷36.9×53.2＝⒂2.8÷70＝⒃8.3×5＝⒄0.42÷2.1＝⒅19÷3.8＝⒆8.52＋1.32＝⒇(13.6—6.4)÷9＝⑵(6.9—6.3)÷6＝⑶9.3×5＝⑷0.44÷2.2＝⑸1.8÷0.3—2.77＝⑹0.65×0.7＝⑺0.095千克＝( )克⑻5.98—0.21×2＝⑼130厘米＝( )米⑽9.2×9.9＝9.2×( )—9.2×( ) ⑾0.27×0.9＝⑿1.6×7＝⒀0.57×( )＝57⒁0.63÷0.7＝⒂13.5—1.8×7＝⒃18÷1.8＝⒄32.8÷2＝⒅3.21＋12.54＝⒆8×0.9＝⒇0.19×0.6＝⑵9×0.9＝⑶(9.6—6.8)÷7＝⑷23.4÷5＝⑸6.95—1.2×4＝⑹0.63÷0.9＝⑺0.58×( )＝58⑻0.18×0.4＝⑼1.9÷0.19—6.77＝⑽4.9÷70＝⑾0÷8.36×7.21＝⑿0.67×0.5＝⒀160厘米＝( )米⒁15.7—2.3×6＝⒂0.051千克＝( )克⒃23.6＋2.23＝⒄0.38÷1.9＝⒅18.6—2.7×5＝⒆1.9÷1.9＝⒇0.26×0.6＝⑵(9.3—6.5)÷7＝⑶7.1—2.3×3＝⑷19÷7.6＝⑸0.66×0.6＝⑹140厘米＝( )米⑺0.063千克＝( )克⑻8.4×9.9＝8.4×( )—8.4×( )⑼45.3×0÷54.6＝⑽0.27×0.8＝⑾2.1÷0.3—5.31＝⑿0.58×( )＝29⒀7.3×5＝⒁0.39÷1.3＝⒂16.7—1.8×9＝⒃0.72÷0.8＝⒄3.95＋5.32＝⒅42.6÷6＝⒆0.19×0.5＝⒇0.8×8＝⑵(6.3—1.5)÷8＝⑶7.5—1.3×4＝⑷42.4÷8＝⑸7÷2.8＝⑹0.26×0.7＝⑺0.61×( )＝610⑻19.8—2.4×7＝⑼254厘米＝( )米⑽1.6×8＝⑾0÷8.32×9.65＝⑿7.8×9.9＝7.8×( )—7.8×( ) ⒀2150cm2＝( )dm2⒁2.2÷0.11—19.2＝⒂6.31＋2.88＝⒃0.36÷1.2＝⒄0.72÷0.9＝⒅0.72×0.7＝⒆0.18×0.5＝⒇0.8×7＝⑵1.7×9＝⑶0.36÷1.2＝⑷0.59×( )＝59⑸0.71×0.8＝⑹2.4÷0.2—9.58＝⑺15.6—2.5×6＝⑻293厘米＝( )米⑼0.8×6＝⑽1.6÷80＝⑾89.6×0÷5.98＝⑿8.7—1.6×4＝⒀2360cm2＝( )dm2⒁0.27×0.7＝⒂0.81÷0.9＝⒃6÷2.4＝⒄64.8÷9＝⒅(9.3—6.5)÷7＝⒆9.3＋8.23＝⒇0.19×0.4＝⑵1.7×8＝⑶(13.7—12.5)÷6＝⑷45.9÷9＝⑸0.73×0.7＝⑹3÷2.4＝⑺10.9—2.6×4＝⑻2.4÷0.3—7.51＝⑼0.18×0.6＝⑽25厘米＝( )米⑾0÷4.65×9.65＝⑿190cm2＝( )dm2⒀3.2÷80＝⒁0.26×0.8＝⒂0.62×( )＝62 ⒃9.3×5＝⒄0.33÷1.1＝⒅0.81÷8.1＝⒆0.8×5＝⒇11.4＋2.64＝⑵26.4÷8＝⑶7.9—3.6×2＝⑷0.81÷2.7＝⑸0.34÷1.7＝⑹0.74×0.7＝⑺0.62×( )＝31⑻2.4÷0.4—2.96＝⑼230cm2＝( )dm2⑽5.8×10.1＝5.8×( )＋5.8×( ) ⑾0.8×4＝⑿8.65×0÷2.31＝⒀6.4÷80＝⒁0.27×0.6＝⒂365厘米＝( )米⒃4÷1.6＝⒄4.3×5＝⒅(10.9—7.4)÷5＝⒆0.19×0.3＝⒇3.26＋2.24＝⑵(14.9—12.5)÷8＝⑶8.1—0.9×8＝⑷72.8÷8＝⑸4÷3.2＝⑹0.26×0.9＝⑺2.4÷0.8—2.11＝⑻3020cm2＝( )dm2⑼32厘米＝( )米⑽6.8×10.1＝6.8×( )＋6.8×( ) ⑾0.8×3＝⑿当a＝0.2时，15a2＝( )⒀0÷7.98×6.38＝⒁5.6÷80＝⒂0.64×( )＝320⒃0.32÷1.6＝⒄0.72÷1.8＝⒅0.76×0.7＝⒆0.18×0.7＝⒇33.26＋21.24＝⑵22÷2.2＝⑶0.72÷2.4＝⑷0.63×( )＝630⑸2.4÷0.12—18.5＝⑹0.75×0.7＝⑺9厘米＝( )米⑻9.1—2.3×3＝⑼7.3×9.9＝7.3×( )—7.3×( ) ⑽0.8×2＝⑾2090cm2＝( )dm2⑿0÷3.58×14.65＝⒀0.055千克＝( )克⒁0.28÷1.4＝⒂0.27×0.5＝⒃1.6×9＝⒄27.9÷9＝⒅(11.9—9.5)÷8＝⒆0.19×0.2＝⒇22.7＋3.77＝⑵(13.5—9.9)÷6＝⑶44.1÷7＝⑷9.5—2.1×4＝⑸21÷2.1＝⑹2.6÷1.3—0.35＝⑺0.025千克＝( )克⑻0.27×0.3＝⑼120厘米＝( )米⑽0÷8.31×7.65＝⑾0.7÷70＝⑿0.65×( )＝130 ⒀0.81×0.7＝⒁1.7×6＝⒂0.26÷1.3＝⒃11.8—3.2×3＝⒄0.91÷7＝⒅0.18×0.8＝⒆3.69＋7.25＝⒇0.7×9＝⑵0.7×8＝⑶0.91÷1.3＝⑷0.64×( )＝64⑸4.2—1.2×3＝⑹140厘米＝( )米⑺0÷6.31×9.65＝⑻0.77×0.7＝⑼5.6×9.9＝5.6×( )—5.6×( ) ⑽280cm2＝( )dm2⑾9.8—2.5×3＝⑿2.7÷0.3—6.37＝⒀0.24÷1.2＝⒁4.32＋7.21＝⒂21÷4.2＝⒃52.8÷8＝⒄0.27×0.4＝⒅(12.9—9.4)÷7＝⒆1.7×7＝⒇0.18×0.9＝。