小學(xué)五年級數(shù)學(xué)口算題庫五百題一、小數(shù)的加減運算（100題）知識點覆蓋：一位小數(shù)、兩位小數(shù)的加減（不進位/進位、不退位/退位），結(jié)果化簡（如1.0=1）。（一）小數(shù)加法（50題）1.0.3+0.5=2.1.2+0.7=3.0.4+0.6=4.1.5+0.3=5.0.7+0.9=6.2.1+0.8=7.0.2+0.7=8.1.3+0.5=9.0.6+0.4=10.1.1+0.9=11.0.8+0.7=12.2.3+0.5=13.0.5+0.9=14.1.7+0.2=15.0.3+0.7=16.1.4+0.6=17.0.9+0.8=18.2.5+0.3=19.0.2+0.9=20.1.6+0.4=21.0.7+0.6=22.1.9+0.1=23.0.4+0.5=24.2.2+0.7=25.0.6+0.7=26.1.8+0.2=27.0.3+0.9=28.1.5+0.5=29.0.8+0.9=30.2.1+0.9=31.0.2+0.8=32.1.3+0.7=33.0.5+0.8=34.1.7+0.3=35.0.4+0.9=36.1.9+0.2=37.0.6+0.8=38.2.3+0.7=39.0.3+0.8=40.1.6+0.5=41.0.7+0.7=42.2.2+0.8=43.0.5+0.7=44.1.8+0.3=45.0.9+0.7=46.2.4+0.6=47.0.2+0.6=48.1.4+0.7=49.0.4+0.7=50.1.1+0.8=（二）小數(shù)減法（50題）1.0.8-0.3=2.1.5-0.6=3.2.1-0.7=4.1.3-0.5=5.0.9-0.4=6.1.7-0.8=7.2.5-0.6=8.1.9-0.7=9.0.7-0.2=10.1.4-0.5=11.0.6-0.1=12.2.3-0.8=13.1.2-0.3=14.0.8-0.5=15.1.6-0.7=16.2.4-0.9=17.1.1-0.2=18.0.9-0.5=19.1.7-0.9=20.2.5-0.8=21.1.2-0.4=22.0.7-0.3=23.1.5-0.8=24.2.3-0.7=25.1.0-0.1=26.0.8-0.6=27.1.6-0.9=28.2.4-0.8=29.1.1-0.3=30.0.9-0.6=31.1.7-0.8=32.2.5-0.7=33.1.2-0.5=34.0.7-0.4=35.1.5-0.9=36.2.3-0.6=37.1.0-0.2=38.0.8-0.7=39.1.6-0.8=40.2.4-0.7=41.1.1-0.4=42.0.9-0.7=43.1.7-0.7=44.2.5-0.6=45.1.2-0.6=46.0.7-0.5=47.1.5-0.7=48.2.3-0.5=49.1.0-0.3=50.0.8-0.4=二、小數(shù)的乘除運算（100題）知識點覆蓋：一位小數(shù)×一位小數(shù)、一位小數(shù)×整數(shù)；一位小數(shù)÷一位小數(shù)（能整除）、整數(shù)÷一位小數(shù)（能整除）。（一）小數(shù)乘法（50題）1.0.2×0.3=2.1.5×0.4=3.0.7×0.8=4.2.1×0.5=5.0.9×0.6=6.1.3×0.7=7.0.4×0.9=8.1.7×0.2=9.0.5×0.5=10.2.2×0.3=11.0.3×0.4=12.1.6×0.5=13.0.8×0.7=14.2.3×0.4=15.0.9×0.7=16.1.4×0.6=17.0.5×0.6=18.2.1×0.6=19.0.8×0.9=20.1.5×0.7=21.0.4×0.8=22.1.7×0.3=23.0.6×0.7=24.2.2×0.5=25.0.9×0.8=26.1.6×0.8=27.0.5×0.7=28.2.3×0.5=29.0.8×0.8=30.1.7×0.4=31.0.3×0.5=32.1.8×0.5=33.0.7×0.9=34.2.4×0.5=35.0.9×0.9=36.1.9×0.5=37.0.5×0.8=38.2.5×0.5=39.0.8×0.7=40.1.1×0.5=41.0.4×0.7=42.1.2×0.5=43.0.6×0.8=44.1.3×0.5=45.0.9×0.5=46.1.4×0.5=47.0.5×0.9=48.1.5×0.5=49.0.8×0.6=50.1.6×0.5=（二）小數(shù)除法（50題）1.0.6÷0.2=2.1.2÷0.3=3.0.8÷0.4=4.1.5÷0.5=5.0.9÷0.3=6.1.8÷0.6=7.0.7÷0.7=8.2.1÷0.7=9.0.4÷0.2=10.2.4÷0.8=11.0.5÷0.5=12.2.5÷0.5=13.0.6÷0.3=14.1.2÷0.4=15.0.8÷0.2=16.1.5÷0.3=17.0.9÷0.9=18.1.8÷0.9=19.0.7÷0.1=20.2.1÷0.3=21.0.4÷0.4=22.2.4÷0.6=23.0.5÷0.1=24.2.5÷0.1=25.0.6÷0.6=26.1.2÷0.6=27.0.8÷0.8=28.1.5÷0.1=29.0.9÷0.1=30.1.8÷0.3=31.0.7÷0.2=32.2.1÷0.6=33.0.4÷0.1=34.2.4÷0.3=35.0.5÷0.2=36.2.5÷0.2=37.0.6÷0.1=38.1.2÷0.1=39.0.8÷0.1=40.1.5÷0.2=41.0.9÷0.2=42.1.8÷0.2=43.0.7÷0.3=44.2.1÷0.2=45.0.4÷0.3=46.2.4÷0.2=47.0.5÷0.3=48.2.5÷0.3=49.0.6÷0.4=50.1.2÷0.2=三、分數(shù)的基本運算（200題）知識點覆蓋：同分母分數(shù)加減（分母10以內(nèi)）、異分母分數(shù)加減（分母互質(zhì)或倍數(shù)關(guān)系）、分數(shù)乘整數(shù)/分數(shù)（分子分母互質(zhì)）、分數(shù)除以整數(shù)/分數(shù)（轉(zhuǎn)化為乘法）。（一）同分母分數(shù)加減法（50題）1.1/5+2/5=2.3/7-1/7=3.2/9+5/9=4.4/10-3/10=5.5/8+1/8=6.7/12-5/12=7.3/5+1/5=8.6/7-2/7=9.1/3+2/3=10.5/9-3/9=11.2/5+3/5=12.4/7-3/7=13.3/9+4/9=14.5/10-2/10=15.6/8+1/8=16.8/12-5/12=17.4/5+1/5=18.5/7-1/7=19.1/4+3/4=20.6/9-3/9=21.3/5+2/5=22.3/7-2/7=23.4/9+3/9=24.6/10-1/10=25.7/8+1/8=26.9/12-5/12=27.5/5+0/5=28.4/7-0/7=29.1/2+1/2=30.7/9-4/9=31.2/5+1/5=32.2/7-1/7=33.5/9+2/9=34.7/10-3/10=35.8/8+0/8=36.10/12-5/12=37.1/5+4/5=38.1/7-0/7=39.3/4+1/4=40.8/9-5/9=41.2/5+3/5=42.3/7-3/7=43.6/9+1/9=44.8/10-5/10=45.9/8+1/8=46.11/12-5/12=47.4/5+0/5=48.5/7-5/7=49.1/3+1/3=50.9/9-3/9=（二）異分母分數(shù)加減法（50題）1.1/2+1/3=2.1/4+1/5=3.1/3+1/4=4.1/5+1/6=5.1/2-1/3=6.1/4-1/5=7.1/3-1/4=8.1/5-1/6=9.2/3+1/4=10.3/4+1/5=11.2/5+1/3=12.3/5+1/4=13.2/3-1/4=14.3/4-1/5=15.2/5-1/3=16.3/5-1/4=17.1/2+2/3=18.1/3+3/4=19.1/4+4/5=20.1/5+5/6=21.2/3-1/2=22.3/4-1/3=23.4/5-1/4=24.5/6-1/5=25.1/2+1/4=26.1/3+1/6=27.1/4+1/8=28.1/5+1/10=29.1/2-1/4=30.1/3-1/6=31.1/4-1/8=32.1/5-1/10=33.2/3+1/6=34.3/4+1/8=35.4/5+1/10=36.5/6+1/12=37.2/3-1/6=38.3/4-1/8=39.4/5-1/10=40.5/6-1/12=41.1/2+3/4=42.1/3+2/3=43.1/4+3/4=44.1/5+4/5=45.3/4-1/2=46.2/3-1/3=47.3/5-1/5=48.5/6-1/6=49.1/2+1/2=50.1/3+1/3=（三）分數(shù)乘法（50題）1.1/2×1/3=2.2/3×3/4=3.3/4×4/5=4.4/5×5/6=5.1/3×2/5=6.2/5×3/7=7.3/7×4/9=8.4/9×5/11=9.1/2×2/3=10.2/3×3/5=11.3/5×5/7=12.5/7×7/9=13.1/4×3/5=14.3/5×2/7=15.2/7×5/9=16.5/9×3/11=17.1/2×3/4=18.3/4×4/7=19.4/7×7/10=20.7/10×10/13=21.1/3×3/5=22.3/5×5/8=23.5/8×8/11=24.8/11×11/15=25.1/5×2/3=26.2/3×3/7=27.3/7×7/10=28.7/10×10/17=29.1/2×4/5=30.4/5×5/9=31.5/9×9/13=32.9/13×13/17=33.1/4×2/5=34.2/5×5/11=35.5/11×11/16=36.11/16×16/21=37.1/3×4/7=38.4/7×7/12=39.7/12×12/17=40.12/17×17/23=41.1/5×3/7=42.3/7×7/14=43.7/14×14/19=44.14/19×19/25=45.1/2×5/6=46.5/6×6/11=47.6/11×11/17=48.11/17×17/23=49.1/3×5/8=50.5/8×8/13=（四）分數(shù)除法（50題）1.1/2÷1/3=2.2/3÷4/5=3.3/4÷1/2=4.1/5÷2/3=5.2/7÷3/4=6.3/8÷5/6=7.1/6÷1/3=8.4/9÷2/3=9.5/12÷5/6=10.2/5÷4/5=11.1/3÷1/2=12.3/4÷2/3=13.2/5÷1/3=14.1/4÷3/5=15.3/7÷4/5=16.4/9÷5/6=17.1/7÷1/4=18.5/10÷2/5=19.6/13÷6/13=20.3/5÷3/5=21.1/2÷2/3=22.2/3÷3/4=23.3/4÷4/5=24.4/5÷5/6=25.1/3÷2/3=26.2/5÷3/5=27.3/7÷4/7=28.4/9÷5/9=29.1/4÷2/4=30.2/6÷3/6=31.3/8÷4/8=32.4/10÷5/10=33.1/2÷3/4=34.3/4÷5/6=35.5/6÷7/8=36.7/8÷9/10=37.1/3÷3/4=38.3/4÷5/7=39.5/7÷7/9=40.7/9÷9/11=41.1/4÷4/5=42.4/5÷5/7=43.5/7÷7/10=44.7/10÷10/13=45.1/5÷5/6=46.5/6÷6/7=47.6/7÷7/8=48.7/8÷8/9=49.1/2÷1/2=50.1/3÷1/3=四、因數(shù)與倍數(shù)（50題）知識點覆蓋：找1-20以內(nèi)數(shù)的因數(shù)、倍數(shù)（寫出5個）、判斷質(zhì)數(shù)/合數(shù)、最大公因數(shù)/最小公倍數(shù)（簡單）。1.12的因數(shù)有哪些？2.15的倍數(shù)有哪些（寫出5個）？3.17是質(zhì)數(shù)嗎？4.12是合數(shù)嗎？5.24的因數(shù)有哪些？6.10的倍數(shù)有哪些（寫出5個）？7.13是質(zhì)數(shù)嗎？8.18是合數(shù)嗎？9.7的因數(shù)有哪些？10.5的倍數(shù)有哪些（寫出5個）？11.19是質(zhì)數(shù)嗎？12.20是合數(shù)嗎？13.16的因數(shù)有哪些？14.8的倍數(shù)有哪些（寫出5個）？15.2是質(zhì)數(shù)嗎？16.9是合數(shù)嗎？17.11的因數(shù)有哪些？18.7的倍數(shù)有哪些（寫出5個）？19.3是質(zhì)數(shù)嗎？20.14是合數(shù)嗎？21.18的因數(shù)有哪些？22.9的倍數(shù)有哪些（寫出5個）？23.5是質(zhì)數(shù)嗎？24.15是合數(shù)嗎？25.20的因數(shù)有哪些？26.12的倍數(shù)有哪些（寫出5個）？27.7是質(zhì)數(shù)嗎？28.16是合數(shù)嗎？29.13的因數(shù)有哪些？30.11的倍數(shù)有哪些（寫出5個）？31.17是質(zhì)數(shù)嗎？32.10是合數(shù)嗎？33.14的因數(shù)有哪些？34.13的倍數(shù)有哪些（寫出5個）？35.19是質(zhì)數(shù)嗎？36.8是合數(shù)嗎？37.15的因數(shù)有哪些？38.14的倍數(shù)有哪些（寫出5個）？39.23是質(zhì)數(shù)嗎？40.6是合數(shù)嗎？41.17的因數(shù)有哪些？42.16的倍數(shù)有哪些（寫出5個）？43.29是質(zhì)數(shù)嗎？44.4是合數(shù)嗎？45.19的因數(shù)有哪些？46.17的倍數(shù)有哪些（寫出5個）？47.31是質(zhì)數(shù)嗎？48.2是合數(shù)嗎？49.21的因數(shù)有哪些？50.19的倍數(shù)有哪些（寫出5個）？五、混合運算（50題）知識點覆蓋：兩步運算（先乘除后加減，無括號），小數(shù)與分數(shù)混合（可選）。1.0.5+1.2×2=2.3/4-1/2÷2=3.1.5×0.4+0.6=4.2/3+1/3×1/2=5.0.8÷0.2-1.5=6.5/6-1/3×1/2=7.2.1×0.5+0.9=8.3/5×1/2+1/5=9.1.2÷0.3+0.8=10.4/7-1/2÷3=11.0.7×0.8+0.5=12.5/8×2/3+1/4=13.1.8÷0.6-2.0=14.6/9-1/3÷1/2=15.2.5×0.4+1.0=16.7/10×3/5+1/5=17.0.9÷0.3+0.7=18.8/12-1/4÷1/3=19.3.0×0.5+0.8=20.9/15×4/5+1/3=21.1.4÷0.7-1.5=22.10/16-1/5÷1/4=23.0.6×0.9+0.4=24.11/20×5/6+1/6=25.1.6÷0.8+0.6=26.12/18-1/6÷1/5=27.2.2×0.5+0.7=28.13/24×6/7+1/7=29.0.5÷0.5+0.9=30.14/28-1/7÷1/6=31.1.0×0.6+0.8=32.15/30×7/8+1/8=33.1.5÷0.5-2.5=34.16/32-1/8÷1/7=35.2.0×0.7+0.6=36.17/34×8/9+1/9=37.0.8÷0.4+0.5=38.18/36-1/9÷1/8=39.2.5×0.3+0.9=40.19/38×9/10+1/10=41.1.2÷0.4-2.0=42.20/40-1/10÷1/9=43.0.7×0.9+0.4=44.21/42×10/11+1/11=45.1.8÷0.9+0.7=46.22/44-1/11÷1/10=47.3.0×0.4+0.8=48.23/46×11/12+1/12=49.0.6÷0.2-2.5=50.24/48-1/12÷1/11=答案部分（節(jié)選）說明：答案僅提供參考，分數(shù)需化簡為最簡形式，小數(shù)需保留合理位數(shù)（如1.0=1）。一、小數(shù)的加減運算答案（一）小數(shù)加法（50題）1.0.82.1.93.1.04.1.85.1.66.2.97.0.98.1.89.1.010.2.0（后續(xù)答案略，按此邏輯推導(dǎo)）（二）小數(shù)減法（50題）1.0.52.0.93.1.44.0.85.0.56