试题 试卷
题型：填空题 题类：常考题 难易度：容易
人教版数学一年级下册2.1 十几减9
12 – 7 = 12 – 4 = 12 – 9 = 12 – 6 =
13 – 5 = 13 – 9 = 13 – 7 = 13 – 4 =
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小羊还要收多少个玉米才能和小牛收得同样多？
试题篮
上填上合适的数。 
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