五年级数学上册口算题Prepared on 21 November 2021五年级数学上册口算题第一单元三峡工程（一）——小数乘法第一课时小数乘整数（新授）口算32×3= 60×3= 18×10= 0.007×100= 6÷100=49×2= 12×7= 24×100= 3.136×100= 63.6÷100=43×4= 72×5= 2.67×10= 36.7÷10= 1.356÷100= 32×4= 82×5= 0.136×100= 0.3÷100= 2.3÷10=第二课时小数乘整数（练习）计算14×9= 3.14×2= 4.44×200= 23×2.00= 0.13×3=17×8= 5×1.7= 2.8×40= 1.25×80= 0.6×7=20×4= 2.5×4= 100×5.176= 3.5×20= 0.12×5=42×3= 5.26×0= 3×6.2= 0.25×40= 1.2×20=第三课时小数乘小数（新授）计算1.2×3=2.5×40= 2.4×10= 4×0.05=3.5×2=0.37×4= 0.37×4= 2.5×40= 10×0.07= 1.4×6=0.18×7= 1.5×4= 2×0.05= 0.14×4= 3.8×5=3.7×3= 0.6×8= 3×1.7= 0.05×7= 8.7×9=第四课时小数乘小数（练习）口答它们的积有几位小数0.45×2.5= 0.02×1.7= 0.1×0.01= 68.59×12.23= 0.36×0.2=0.213×0.26= 0.3×0.3= 0.51×0.6= 1.006×0.3=3.82×0.3=1.3×3= 3.7×0.2=105.2×0.2=2.71×0.4=1.9×46.78=第五课时小数的四则混合运算（新授）估算它们的结果0.31×3≈1.2×0.8≈0.98×12.1≈ 1.51×2.01≈0.97×3.62≈0.46×12≈0.8×100.2≈ 2.9×6≈9.2×0.3≈30×0.3≈1.03×5.21≈1.03×0.521≈0.103×5.21≈10.3×0.521≈103×5.21≈第六课时小数的四则混合运算（练习）计算6.8×0.1= 4.8×8= 2.14×2= 1.1×0.8= 0.5×2×0.1= 4×0.4×0.3= 7×0.7×0=0.75×2.2×0.3=8.6+1.4×5=第七课时我学会了吗（复习课）计算2.4×8= 0.6×17= 0.16×5= 0.59×2= 3×0.6×7= 9.7×0.2= 0.3×0.39= 0.17×4= 8.4×8= 5×4×0.5= 8.6×0.3= 0.08×10=3.2×0.9= 0.017×7= 8×0.2×5= 0.5×0.61×0.2=0.24×4.52+0.24×5.48（7.6-0.23）×2.64=第二单元图案美——对称、平移与旋转练习内容：巩固小数乘整数、小数乘小数、小数的加减法。

重点让学生熟练计算较简单的小数加、减、乘及四则混合运算，注意小数乘法中积的小数的位数。

第一课时计算9.4×0.3= 0.17+0.06= 0.79×2= 0.5×8.1= 4.5×0.6= 6.5×0.9= 1.02-0.09= 0.06×1.9= 0.14×7= 3.9×70= 0.8×5= 0.83+0.6= 1.6×0.7= 2.8×0.3= 0.8×9.7= 9.4×5= 0.98-0.09= 90×0.1= 0.2×7.5= 0.04×2.5= 计算第二课时1.9×0.9= 43×0.9= 0.15×7= 1.3×0.7= 0.6×7.6= 4.4×0.2= 8.3×5= 0.9×1.5= 3.6×0.2= 9.4×0.3= 4.8×0.2= 7.8×0.3= 0.3×20= 65×0.4=2.9×0.4= 1.2×0.8= 9.6×4= 0.8×6.1= 6.5×50= 0.3×3.5= 计算第三课时3.2-3.2= 2.8×0.4= 0.4×0.8= 3.5×200= 2.3×0.4= 3.7+2.3= 0.32×500= 1.6×0.4= 2.6×3= 30×0.1= 13.1×0.7-3.1×0.7= 0.8×0.4×1.25= 7.5×0.12+2.5×0.12=第四课时计算4.9×0.7= 3.5×0.2= 0.4×0.03= 2.7×3= 0.25×0.4= 1.6×4= 0.8×0.6= 0.25×100= 30×2.3= 1.36×2= 20×3.5+6.5= 1.4+3.6×8=2.3×0.12-0.3×0.12=第五课时计算1.5×0.6=0.26×0.4= 0.6×0.12= 7.6×0.2= 4.3×0.2=2.4×3= 0.7×0.15= 2.3×30= 0.517×0= 6.4×0.4= 2.5×4×3.2=102×0.4-2×0.4=104×2.5=9.9×5第三单元三峡工程（二）——小数除法第一课时小数除以整数（新授）口算76÷2= 721÷7=3.26÷10=0.42×0.3=5.6×20=60÷6= 905÷5=435÷100=3.5×2=4.5×100=57÷3= 800÷40=0.3÷100=64÷4=315÷1000=第二课时小数除以整数（练习）计算8.7×0.1= 7.2÷4= 6.03÷9= 6.6÷2= 7.2÷4=70×0.7= 9.6÷4= 8.4÷7= 9.6÷6= 6.96÷8=1.5×6= 7.1÷3= 6.4÷8= 9.9÷9= 0.75÷3=2.3×4= 8.5÷5= 9.1÷7= 5.7÷3=第三课时小数除以小数（新授）计算6.2×4= 3.3+0.7= 9.8÷2= 9.6÷8= 0.72÷3= 1.4×5= 0.6+0.8= 0.8÷5= 9.81÷9= 0.64÷4=1.5×5= 3.26-0.7= 9.8÷7= 7.2÷4= 9.5÷5=2.6×6= 5.8-0.4= 5.6÷4= 0.76÷4= 8.4÷4=第四课时小数除以小数（练习）计算0.6+0.3= 6.5×0.3= 4÷0.5= 3.5÷0.5= 81÷0.9=1.3-0.4= 0.66×0.2= 3.6÷0.6= 4.9÷0.7= 7.2÷0.8= 5.2+3.8=3.8×0.3=2.1÷0.3= 36÷0.6= 4.5÷0.5= 7.7-0.7= 1.8×8= 4.2÷0.7= 32÷0.4= 6.4÷0.4= 第五课时商的近似值（新授）计算0.42×3= 13.6+0.4= 4.9÷7= 4.8÷8= 5.6÷8=12×0.6=38.6-8= 2.4÷6= 6.3÷7= 0.24÷3=0.7×0.6= 17.3+0.7= 0.42÷3= 7.2÷8= 8.1÷0.9= 2.5×4= 6.4-0.8= 6.5÷5= 6.03÷0.3= 5.6÷0.7= 第六课时商的近似值（练习）计算2.9+5.7= 9×1.3= 0.96÷8= 2.5÷0.5= 0.32÷0.8=3.6+2.1= 6.7×4= 0.32÷1.6= 10÷3= 0.36÷0.9=4.5-0.9= 7.2×0.1= 0.9÷0.001= 3÷0.5= 6.4÷0.4= 7.3-0.2= 9.9×2= 1.8÷0.6= 0.36÷0.3= 4÷9=第七课时带中、小括号的小数四则混合运算（新授）计算6.79-5.4=2.4×0.5= 2.4÷0.3= 0÷5.2= 6.8÷4= 6.3+4.7= 0.5×1.1= 0.49÷0.7= 40÷0.4=7.8÷0.2=8.02+1.8= 0.24×5= 6.7÷0.1= 7.5÷0.5=9.8÷0.7= 第八课时带中、小括号的小数四则混合运算（练习）计算90÷0.2= 43.7-6.2= 2.3×0.3= 5.6÷7= 0.4×5×2=9.5÷0.5= 5.8+0.2= 4×0.8= 8.4÷1.2= 8×0.5×2= 7.2÷0.6= 3.73+0.53= 2.5×0.3= 7.5÷0.3= 3×6×0.3= 计算下面各题384×[160÷(75-35)]0.23×6.11+4.89×0.23第九课时我学会了吗（复习）计算0.5×0.2= 0.8×0.5= 0.56÷14= 1-0.75= 1.82-0.63=1.6×0.05= 0.15-0.05= 8÷0.4= 0.24÷0.6= 0×1.24= 32.8+19= 1.89÷9= 0.06+0.9= 0.51÷17= 1.8÷0.8= 2.53÷（0.44×1.25）÷460.5÷[(17.2-16.2)÷0.02]第十课时小数除法复习课计算3.6+7.8= 1.1×0.8= 7.9×0.2= 6.9÷0.3= 9.9÷0.9=4.3-0.2= 0.4×90= 2.4×0.4= 7.77= 0.65÷5= (9.2+4.38÷0.73)×2.5 (3.8+1.5-3.8+1.2)×5.515.15÷[(5.64-1.89)×0.4]14.64÷[0.6÷(0.31-0.25)]第四单元珍稀动物——简易方程第一课时方程的意义（新授）计算3.4×5= 25×0.4= 1.25×0.4= 3.8÷0.2= 0.52÷0.2= 1.6×10= 2.4×0.5= 8.456×100= 6.3÷0.7= 3.7×8=1.4×9= 173÷10= 0.65÷0.05=1.7×0.3= 1.2×0.6= 1.5×0.8=2.5÷0.5= 0.85÷5=第二课时方程的意义（练习）计算2.2-0.9= 1.5×4= 9.6÷0.8= 7.2÷2.4= 0.77÷7=8+0.1= 2.5×4= 6.24÷3= 0.6÷12= 7.06÷0.02= 0.36+0.64= 0.13×6= 0.78÷0.6= 0.84÷0.3= 0.3÷6=8.13-0.13= 8.5×100= 9÷30= 9.2÷0.4= 0.9÷1.5= 第三课时简易方程（新授）计算20-2.5= 0.18×0.3= 2.8×0.4= 9.6÷8= 9.2÷0.6= 30-21.8= 0.24×100= 0.9×6= 5.8÷0.3= 7.2÷1.8= 4.9+2.1= 0.04×0.25= 2.1×0.3= 0.45÷0.5= 0÷96=0.09+0.01= 3.8×2= 60×0.5= 57÷0.19= 0.72÷6=第四课时简易方程（练习）解方程（选择两题写出检验过程）x+8.3=22 x-1.6=19.2 2.1+x=13 1.3+x=13 x+0.8=3.2x-8.4=1.2 20-x=9 12-x=4 x-3=18 3.2+x=63.5 第五课时用乘除法解方程（新授）计算0.27+0.23= 0.15×8= 8.9×0.3= 7÷1.4= 0.38÷0.02= 1-0.04= 1.98×100= 6.5×2= 0.6÷0.15= 0.72÷6=解方程x-6=18 3.6+x=10 30-x=9 x+4.2=10.2 x-1.8=15.2 第六课时用乘除法解方程（练习）计算0.4+2.5= 12.8×100= 9.3÷3= 6×0.3= 9.1÷1.3= 解方程4x+32=64 7x-7=56 0.5x-20=3.5 0.5x=10 4x+36=42 第七课时列方程解决问题（新授）解方程3x+9=270.5x+8=43 6x-3x=18 9x-40=5 3x÷5=4.8x+62=1542.1x=16.83x－8＝163x+9=27x+5.6=9.4第八课时列方程解决问题（练习）解方程54-X=247X=49126÷X=423.4x=10.2x+21=742.7x=18.916+x=985.4x=21.6x-32=10734+x=123第九课时我学会了吗（复习）解方程x-98=3710.5x=32x+5=89x+87=789x+56=1571.2x=81.6X+8.3=10.7x-0.7x=3.691÷x＝1.34x－6＝30第五单元多边形的面积第一课时平行四边形的面积（新授）口算1.5×4= 6.4÷0.8= 7.2×0.01= 10÷4=0.36×2=1÷0.125= 0.25×8= 8.1÷0.3=0.1×0.02= 1.6÷16=（1.5+2.5）×4= 3×0.2×0.5= 12-6.2-3.8=7×1.6+7×0.4=第二课时平行四边形的面积（练习）口算0.12×3＝0.49÷0.7＝3÷2=0.2×5=42÷0.6＝72÷0.8＝ 1.5÷3＝0.2×0.5＝0.4×0.25= 0.09÷0.1= 2.8÷0.7= 7－1.9－4.1=3.2÷0.4×0.4=1.9×0.1=3.5×0.1＝第三课时三角形的面积（新授）口算0.42÷0.6＝ 3.2×0.5＝0.21×0.3＝ 2.5×4＝3.6×0.1＝3900÷30= 120×70=0÷72= 42×20=2.5×4＝1800÷300= 910÷70= 1.3×0.5＝ 5.5÷11＝7.2÷1.2＝40×90= 25×2= 12×40= 4.8×2=3.9÷3.9＝第四课时三角形的面积（练习）计算1－0.2×4＝0.25×4×3＝ 1.6＋1.6×4＝0.6－0.47＝(31-21)×(72÷6)= 5.6÷100×10＝7.5×2.5×4＝0.36÷0.12＝ 1.25×2.2×8＝第五课时梯形的面积（新授）估算下面各题：8.9×2.02≈ 1.39×4.8≈307×5.3≈2.02×5≈1.915×5≈10.11×3.12≈39.8×20≈9.82×11≈第六课时梯形的面积（练习）计算1.5×4＝0.12×3＝0.49÷0.7＝40×7＝42÷0.6＝72÷0.9＝ 1.5÷3＝5.43+1.47＝5-2.8＝4×0.25＝0.46÷4.6＝4.5×4＝1.8×0.4＝3×0.3＝0.63÷0.7＝第七课时组合图形的面积6.3÷0.2= 2.4÷8= 6.5-5.6=? 0×12.5= 23.7÷1= 1×9.9=? 2.8÷0.4=? 9.7-3.4= 180÷3＝360÷9＝240÷4＝300÷5＝63÷3＝0÷8＝560÷8＝0×4×20＝180÷6＝500÷5＝80÷4＝40×7＝第八课时估算下面各题178÷9≈104÷5≈478÷6≈305÷6≈138÷7≈272÷3≈148÷5≈243÷8≈口算：0.37×10=? 0.37×100=? 0.37×1000= 2.5×4=? 25×4=? 0.25×4= 4.8×9=? 0.12×3=5×5.8= 0.2×5= 0.28×3=? 7.9×2= 第九课时0.16×4= 1.8÷0.3= ?0.1×0.2=? 1.13×2=?0.5×4=? 6×0.4=? 0.8×7= 0.24×2=?3.5×0.1=? 0.2×0.4=? 0.7×8＝1.5×6＝1.3×0.07＝10.3×2＝?0.7×0.7=? 1.1×10=?0.48×2= 1.3×0.5＝?3.5×0.1=?0.2×0.4=?第十课时0.6×5= 5.4÷0.9= ?7×12= 8×（5×4）=（24＋36）×5= （8×5）×4= 24×5＋36×5= 0.96÷2= 3.6÷0.4= 0.48÷0.8= 0.56÷0.7= 0.72÷0.6=0.24÷0.4= 1.8÷2= 4.8÷0.6= 0.63÷0.09=0.72÷0.8= 8.4÷4= 2.8÷0.7= 1.8÷0.3=第六单元因数与倍数第一课时1、2,5的倍数的特征计算0.36×2= 10.3×2= 2.5×4= 25×4=?0.25×4= 0.2×0.4= 0.1×0.2=? 0.5×4=?1.13×2= 25×8＝6×0.4=? 18×5=17×5= 3.5×0.1=?0.2×0.4=? 0.6×5=5.4÷0.9= 1.3×5＝500×5= 210÷7=第二课时2、3的倍数的特征计算3900÷30= 1.3×6＝0.15÷0.5= 5.4÷0.9=0.06÷0.1= 0.36÷6= 0.72÷0.8= 27÷0.3=1.8÷0.3= 12.÷0.3= 0.28×3= 0.1×3=0.15×4= 7.9×2= 1.8÷3= 180÷3＝360÷9＝240÷4＝300÷5＝63÷3＝第三课时质数与合数计算2×2.4= 0.5×4= 6.4÷8= 7.2×1=10÷0.4= 0.7×8＝ 1.5×6＝1.3×7＝10.3×2＝8.4÷4= 0.28×2=? 0.125×8=2.9×2= 4.8÷.3= 0.1×10=? 0.5×4=?1.13×2=?2.4÷8= 6×0.4=? 6.3÷2=?第四课时分解质因数计算40×90= 25×2= 12×40= 270÷9=6.3÷2= 1÷0.1= 0.2×0.4=?4.8×6=?2×2.4= 2.5×4= ?320÷4＝160÷2＝64÷2＝3×0.2×0.5＝0.28÷0.1=1.5÷5=1.5×4＝0.12×3＝0.49÷0.7＝6.4×0.2＋3.6×0.2＝第五课时我学会了吗？计算0.12×5= 5×6.8= 0.2×10= 69÷3=1.3×6＝0.15÷5= 5.4÷0.9= 0.63÷0.9＝6÷0.1= 4.8×2=? 0.12×3= 5×2.8=0.2×5= 0.28×3=? 0.16×4=? 7.9×3= 4.5×2＝ 4.8÷3= 1.8×4＝3×3.3＝第七单元统计第一课时口算0.5×4= 6.2×0.01= 10÷4= ?240÷4＝0.36×2= 1÷0.5= 1.25×8= 8.1÷3=0.1×2= 1.6÷1.6= 2.4×0.2= 4.2÷0.6= 3.5+7.5= 3×0.2×0.5=11-6.8-3.2=8×2.5=7.56-0.56= 125÷5= 4×2.6+4×0.4=第二课时口算1.2×3＝ 4.9÷0.7 0.24×5= 0.12×3＝4.8÷0.6＝72÷0.8＝ 1.5÷3＝8×0.5＝0.4×0.25= 0.08÷1= 2.8÷.7= 7－1.9－4.1=1÷8= 3÷2= 3.2÷0.4= 0.25×8= 3.5×0.1＝ 3.6÷0.09＝200×0.04＝12÷1.2＝第三课时口算0.42÷0.6＝ 3.2×0.5＝0.21×0.3＝ 2.5×4＝900÷30= 12×70= 720÷72= 42×2=1800÷30= 63÷3＝ 1.3×0.5＝ 5.5÷11＝0.4×90= 0.25×8= 12×40= 4.4×2=6.6×0.1＝ 2.5×0.4＝7.2÷0.6＝ 3.9÷3.9＝第四课时口算1－0.2×4＝0.25×4×8＝1.6＋1.6×4＝3.5÷(2×5)＝42×2＝0.6－0.47＝25×0.8＝(59＋21)×2=5.6÷100×10＝1－0.06＝0.8＋4.7＝0.25×1000＝6.5×2.5×4＝0.36÷3＝360÷12＝6.4÷4＝300÷5＝ 6.3÷3＝3÷0.5= 0.6×3=第八单元总复习5.43+1.47＝5-2.8＝4×0.25＝0.46÷4.6＝0.14÷0.7= 0.1×2= 1.6÷1.6=2.4×0.2=4.2÷0.6= 1.5÷5= 1÷0.1= 0.36÷6=0.2×0.4=? 0.8×7=? 0.24×0.2=? 0.06÷0.1=3.5×0.1=? 0.2×0.4=? 0.8÷0.08= 3÷0.05=1.1÷1.1= 0.28÷0.01= 0.15÷0.5= 5.4÷0.9=4.5×0.4＝ 1.8×0.4＝0.28×3=? 0.125×8=?3×0.3＝ 6.5-5.6= 0.63÷0.7＝ 3.4×0.2＋6.6×0.2＝180÷3＝0.1×3= 7.9×2= 1.8÷0.3=360÷9＝240÷4＝300÷5＝63÷3＝3÷0.05= 8×1.3= 2.4÷8= 8×12.5=0.36×2= 1÷0.5= 1.25×8= 8.1÷3=0.7×8＝ 1.5×6＝ 1.3×0.07＝10.3×2＝0.5×4=? 1.13×2=? 6.3÷2=? 6×0.4=?0.15÷0.5= 5.4÷0.9= 0.06÷0.1= 0.36÷6=郭忠王士新编辑刘兆军郭付慧审核。