口算练习一姓名计时成绩18+9=38+50=56+5=57-34-4=22+29+4=13+3=46+44=58+17=90-35-1=19+4+23=12+3=29+21=73+0=80-49-47=3+15+12=14+6=20+39=69+19=56-46-34=13+8+3=14+0=36+15=69+18=65-49-41=17+10+7=14+8=50+6=76+15=72-36-35=17+3+9=15+9=19+22=80+17=90-44-15=31+17+8=14+6=9+21=52+14=61-47-10=2+4+28=14+0=10+20=76+19=77-42-38=21+31+8=13+5=17+42=61+14=89-15-32=23+4+7=18+4=33+17=61+18=89-6-31=32+26+20=19+9=28+11=63+18=89-37-34=24+20+32=14+3=31+1=73+1=67-10-3=6+16+28=14+1=11+39=15+80=63-6-31=21+3+4=14+7=69+41=17+70=85-27-14=12+10+1=17+4=76+10=15+67=98-37+19=89+16-19=16+1=91+7=5+57=65-34+45=94+1-12=12+8=99+17=10+62=67-41+8=84+18-32=16+2=79+17=15+51=85-22+3=55+22-19=14+9=92+29=14+68=65-27+6=94+6-29=19+3=54+19=6+72=77-47+27=60+10-21=14+5=99+20=1+60=76-39+48=76+15-25=18+3=92+19=0+68=76-22+15=86+22-11=18+4=87+2=16+78=52-35+45=57+28-1=12+7=72+23=14+53=62-20+25=58+15-16=11+7=60+4=10+72=76-31+21=86+23-27=19+7=82+23=13+60=81-41+29=71+29-26=11+6=74+5=17+72=68-41+41=55+25-19=11+6=65+50=8+66=78-25+24=57+21-28=笔算练习二姓名计时成绩12+0=6+6=74+4=80-25-15=17+23+25=18+9=24+41=51+11=91-31-14=17+20+7=11+3=44+40=71+20=93-23-16=28+33+7=12+2=50+45=18+58=71-42+1=94+32-12=12+6=82+27=5+78=92-37+46=60+10-14=14+9=53+29=8+60=91-40+27=73+29-24=口算练习三姓名计时成绩16-6=58-11=41-12=84-(7+18)=13+(74-22)=12-1=97-43=57-11=95-(1+4)=20+(83-50)=16-8=87-32=92-15=95-(9+5)=14+(99-50)=12-3=94-24=42-19=63-(4+16)=10+(83-44)=14-8=96-36=73-27=75-(15+24)=18+(99-40)=16-3=77-50=59-10=97-(7+7)=16+(57-31)=17-4=89-45=40-22=82-(6+10)=19+(88-35)=17-1=73-35=43-30=78-(11+17)=16+(51-31)=11-6=65-12=81-10=83-(10+11)=10+(64-48)=16-3=59-37=53-30=67-(2+24)=16+(76-32)=11-5=79-46=43-27=71-(19+3)=17+(80-43)=19-2=80-36=98-17=95-(7+23)=15+(79-25)=18-3=68-18=42-17=79-(25+19)=11+(72-31)=18-2=94-33=37-11=79-(34-12)=19+(86-44)=16-4=59-14=69-14=65-(34-2)=18+(76-33)=15-4=70-2=79-16=91-(42-11)=17+(72-33)=14-3=77-21=91-30=94-(40-19)=12+(63-28)=15-5=95-24=81-14=83-(48-8)=14+(70-37)=17-7=72-37=62-26=87-(47-17)=20+(81-45)=12-8=57-46=30-17=86-(44-20)=14+(...
