试题 试卷
题型:解决问题 题类:常考题 难易度:困难
两位数减两位数(不退位)1224(10题)
{#blank#}1{#/blank#}+18<29
{#blank#}2{#/blank#}+15<29
{#blank#}3{#/blank#}+12<29
A.28-28 B.3+50 C.80-30 D.40+20
18-9= 39-5= 6+69= 10+30+20=
51-30= 100-20= 33+60= 90-40-20=
47-35= 70-7= 58+12= 19+19-19=
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