人教版一上數(shù)學(xué)第9單元第2課時《解決問題》教學(xué)課件.pptx
第 2 課時 解決問題,義務(wù)教育人教版一年級上冊,總復(fù)習(xí),9,1.口算。,107 = 54 = 62 = 177 = 185 = 2 + 13 = 8 + 5 = 0 + 0 = 15 + 4 =,3,1,4,10,13,15,13,0,19,2.填一填。,6 +( )= 11 14 -( )= 10,9 +( )=13 8 +( )= 15 12 -( )=2 5 -( )= 4