20以内三连减口算练习题(已排版)时间:错误率:13-2-3=19-14-4=16-5-8=20-3-15=18-1-1=18-10-1=20-6-7=14-1-13=20-8-5=1...
20以内加减法口算练习题时间:错误率:20-7=17-17=1+7=8+6=20-16=10+5=11+6=3+6=19-1=18-8=14-7=1+9=11-5=16-2=20-2=1+2=8...
20以内减法口算练习题4000题时间:错误率:16-12=17-3=12-8=10-1=20-3=3-1=20-16=13-4=13-9=19-12=13-6=7-3=14-3=11-5=8-7=...
整十数加减整十数练习题用时:错误:30+70=70+30=20+30=80-60=100-60=70-20=50+50=40+40=20+60=10+40=60+20=20+50=20+80=60-...
EDITORIALFinancialconflictsofinterestpolicies:FromconfusiontoclarityDavidL.Turpin,Editor-in-ChiefSeattle,WashConflictsofinterestpo...
ORIGINALARTICLECephalometricandelectromyographicstudyofpatientsofEastAfricanethnicitywithandwithoutanterioropenbiteFereshtehYousef...