北师大版二年级数学下册口算练习(一)87-55=6×7=6000+800=500+700=49÷7=628+306=540+535=38÷6=6×8=560-40=400+200=61-14=53+48=524+316=351+249=26÷4=150+328=500-478=1000-600=780-180=370-200=530+140=46÷7=290+140=560+210=790-75=50÷8=400-28=550-426=800-704=45÷9=275+325=100-69=430+140=56÷7=43+140=840-400=77-26=51÷9=62÷8=27÷5=85-79=240+68=36÷4=47÷8=380-50=685+200=54÷6=700-316=261+425=400+1400=50÷8=210+356=132+368=40÷7=550+240=120+480=800-132=5×7=45÷7=35÷8=397+211=49÷7=20÷6=54÷6=610-370=9×6=30÷8=67÷9=39÷4=54-26=64+36=30÷7=32+26=37÷8=44-7=23÷4=95-38=6×8=64÷8=56÷7=82-38=54+19=48+12=8×7=42÷6=47÷9=27+29=9×4=48÷8=32÷7=42-29=6×8=54÷9=44÷8=65-38=5×9=64÷8=59÷7=45+38=北师大版二年级数学下册口算练习(二)48+12=8×7=42÷6=47÷9=27+29=9×4=48÷8=32÷7=42-29=6×8=54÷9=44÷8=65-38=5×9=64÷8=59÷7=45+38=7×5=28÷7=39÷6=37+46=6×7=92-36=25÷3=5×8=42÷6=56+27=18÷6=57÷6=4