10以内连加减口算练习题80题用时：错误：3－2＋5=6－6＋7=2＋8－9=9－4＋3=1＋7－8=8＋6－7=4＋5－7=10＋7－10=1＋7＋2=9－4－2=3－3＋1=10...
10以内连加减口算练习题80题用时：错误：8＋10－10=8＋4－4=6－6＋2=9－2－4=9＋2－4=7＋4－7=3＋1－4=10＋3－5=4－2＋1=8＋10－8=6＋1－7=...
10以内连加口算练习题80题用时：错误：2＋4＋3=2＋6＋1=1＋5＋2=3＋2＋1=2＋2＋4=5＋4＋1=2＋1＋2=6＋1＋1=1＋2＋7=2＋2＋5=7＋2＋1=3＋1＋...
10以内连加口算练习题80题用时：错误：1＋7＋1=5＋1＋4=2＋2＋1=5＋1＋1=3＋3＋4=3＋3＋2=2＋4＋2=2＋3＋2=6＋1＋1=3＋5＋1=2＋1＋6=2＋5＋...
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