试题 试卷
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507(10题)
(按从左到右的顺序填写)
(按从上到下的顺序填写)
6+{#blank#}1{#/blank#}=8+4
8 + 4 = 7 + 5 = 7 + 6 = 7 + 8 = 6 + 8 =
5 + 7 = 6 + 7 = 8 + 7 = 7 + 7 = 7 + 9 =
试题篮