20以内三连加法口算练习题(已排版)时间:错误率:1+1+6=6+3+11=5+1+2=7+2+6=7+3+1=1+4+9=13+1+3=2+11+6=10+2+3=7+8+3=...
20以内减法口算练习题4000题时间:错误率:12-12=15-7=14-14=16-6=18-5=15-12=10-9=11-10=16-14=11-4=6-3=18-6=16-12=8-1=10...
20以内加减法口算练习题时间:错误率:6+11=16-16=11+6=4+10=8+12=8-3=17-16=4-3=18-7=13-11=16-1=6-5=2+6=11-3=18-9=15-7...
variousways.Infact,wedon’tknowwhethertheseresultsarestatisticallysignificant.Althoughthisstudyisinnovativeandimportant,anaccurate...
Letterstotheeditor*Short-rootanomalyinanorthodonticpatientThearticleentitled“Short-rootanomalyinanortho-donticpatient”(MarquesLS...
ORIGINALARTICLEModifiedfluoridetoothpastetechniquereducescariesinorthodonticpatients:Alongitudinal,randomizedclinicaltrialAnasH.Al...

