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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558(18题)
5+6=
12-8=
8+3=
15-8=
2+9=
12-6=
8+5=
15-9=
9+9=
11-8=
{#blank#}1{#/blank#}+4=13
{#blank#}2{#/blank#}+9=12
12 – 7 = 12 – 4 = 12 – 9 = 12 – 6 =
13 – 5 = 13 – 9 = 13 – 7 = 13 – 4 =
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