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题型:填空题 题类:常考题 难易度:容易
20以内的进位加法和退位减法510(10题)
10+5=
17-7
16-3
12+5
19-8
11+8
{#blank#}1{#/blank#}<{#blank#}2{#/blank#}<{#blank#}3{#/blank#}<{#blank#}4{#/blank#}<{#blank#}5{#/blank#}
10+8={#blank#}1{#/blank#}
{#blank#}1{#/blank#}
13+5= 4+14= 11+6= 11+8=
4+12= 15+4= 3+12= 2+17=
16+2= 4+13= 13+6= 17+1=
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