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题型:解决问题 题类:常考题 难易度:容易
一年级 1~~5的减法125
1+ =3 0+ =4 4- =2 5- =0
3+2=
{#blank#}1{#/blank#}-3=1
={#blank#}1{#/blank#}
={#blank#}2{#/blank#}
{#blank#}1{#/blank#}
{#blank#}2{#/blank#}
{#blank#}3{#/blank#}
{#blank#}4{#/blank#}
{#blank#}5{#/blank#}
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