数学五年级下册简便运算习题简便运算是五年级下册数学学习的重点，下面就是小编为大家整理的五年级下册数学简便运算练习题，希望对大家有所帮助!习题一1、5.76+13.67+4.24+6.33=(5.76+4.24)+(13.67+6.33)=10+10=202、37.24+23.79-17.24=37.24-17.24+23.79=20+23.79=43.793、4×3.78×0.25=4×0.25×3.78=1×3.78=3.784、125×246×0.8=125×0.8×246=100×246=246005、(2.5+12.5)×40=2.5×40+12.5×40=100+500=6006、3.68×4.79+6.32×4.79=(3.68+6.32)×4.79=10×4.79=47.97.26.86×25.66-16.86×25.66=(26.86-16.86)×25.66=10×25.66=256.68、5.7×99+5.7=5.7×(99+1)=5.7×100=570习题二9、34×9.9=34×(10-0.1)=34×10-34×0.1=340-3.4=336.610、57×101=57×(100+1)=57×100+57×1=575711、7.8×1.1=7.8×(1+0.1)=7.8×1+7.8×0.1=7.8+0.78=8.5812、25×32=25×4×8=100×8=80013、125×0.72=125×8×0.09=1000×0.09=9014、87×2/85=(85+2)×2/85=85×2/85+2×2/85=2+4/85=2又4/8515、56.5-3.7-6.3=56.5-(3.7+6.3)=56.5-10=46.516、32.6÷0.4÷2.5=32.6÷(0.4×2.5)=32.6÷1=32.616、86.7×0.356+1.33×3.56=8.67×3.56+1.33×3.56=(8.67+1.33)×3.56=10×3.56=35.617、15.6÷4-5.6×1/4=15.6×1/4-5.6×1/4=(15.6-5.6)×1/4=10×1/4=2又1/218、16/23×27+16×19/23=27/23×16+16×19/23=16×(27/23+19/23)=16×2=32