7.たし算とひき算の レッスン4
[もどる] [すすむ]
【1】つぎのひき算を暗算でしましょう。

  @ 100 − 47 = 

  A 100 − 55 = 

  B 100 − 32 = 

  C 100 − 19 = 

  D 100 − 23 = 





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