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题型:填空题 题类:常考题 难易度:容易
两位数减两位数(不退位)1230(10题)
3+6=
50-10=
40+40=
8-8=
72-({#blank#}1{#/blank#})=2 ({#blank#}2{#/blank#})+4=40 ({#blank#}3{#/blank#})-20=20
80-({#blank#}4{#/blank#})=8 40+({#blank#}5{#/blank#})=58 ({#blank#}6{#/blank#})+25=55
67-5={#blank#}1{#/blank#}
67-50={#blank#}2{#/blank#}
35+6= 30+56= 78-7= 23+25=
54+18= 90-39= 48+20-7= 29-20+7=
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