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1 .口算: 14 - 8 = 15 - 9 = 12 - 7 = 15 - 7 =

1 .口算: 14 - 8 = 15 - 9 = 12 - 7 = 15 - 7 = 7 + 5 = 13 - 8 = 7 + 8 = 11 - 8 = 13 - 7 = 17 - 9 = 16 - 7 = 12 - 9 =. 1 .口算: 14 - 8 = 15 - 9 = 12 - 7 = 15 - 7 =

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1 .口算: 14 - 8 = 15 - 9 = 12 - 7 = 15 - 7 =

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  1. 1.口算: 14-8= 15-9= 12-7= 15-7= 7+5= 13-8= 7+8= 11-8= 13-7= 17-9= 16-7= 12-9=

  2. 1.口算: 14-8= 15-9= 12-7= 15-7= 7+5= 13-8= 7+8= 11-8= 13-7= 17-9= 16-7= 12-9= ?个 ?个 2 . ?个 10个 10个 = = =

  3. 3. (1) (2)

  4. 求另一个加数的 减法应用题

  5. 5只 7只 ? 12 口答:一共养_____只兔. 4 学校养7只 ,5只 , 一共养多少只兔? ~~~~~~~~~~~~~ 7 + 5 = 12(只)

  6. ?只 7只 12 5 口答:黑兔是_____只. 5 学校养 和 一共12只. 白兔是7只,黑兔是几只? 12-7=5(只)

  7. 1.小明家有7条     ,8条     ,1.小明家有7条     ,8条     ,   一共有多少条金鱼? 做一做 (条) = 2.小明家有     和     一共15条,   白金鱼有7条,红金鱼有几条? (条) = + 15 8 7 15 口答:一共有_____条金鱼. - 8 7 15 8 口答:红金鱼有___条.

  8. 中央电教馆资源中心制作 2003.12

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