一年级数学寒假作业答案_2

一年级数学寒假作业答案 (1)看谁算的又对又快。(29分) 27 + 14 = 72 –19 = 43 +30 = 59 + 5 = 70 + 8 = 6 + 28 =

腾讯文库一年级数学寒假作业答案_2