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  • COMPONER Y DESCOMPONER NÚMEROS DECIMALES
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      COMPONER Y DESCOMPONER NÚMEROS DECIMALES
      PROYECTO 3: NÚMEROS DECIMALES
      Without background sound

      7. Componer y descomponer números decimales.

       

      Los números decimales tienen dos partes separadas por una coma. Ññ

      28,246 es un número decimal. 

      Parte entera Parte decimal
      Decenas Unidades décimas centésimas milésimas
      2 8 2 4 6

      Podemos descomponer el número de distintas maneras:

      • Según la posición de sus cifras (poniendo la cifra seguida de la unidad que ocupa en el número).
        28,246 = 2D + 8 U + 2d + 4 c + 6 m 
      • Según el valor de sus cifras (poniendo el número de unidades que tiene cada cifra dentro del número).
        28,246 = 20 + 8 + 0,2 + 0,04 + 0,006

      La composición es el proceso contrario a la descomposición.

      COMPONER Y DESCOMPONER NÚMEROS DECIMALES
      PROYECTO 3: NÚMEROS DECIMALES
      Without background sound

       

        ACTIVIDADES

      COMPONER Y DESCOMPONER NÚMEROS DECIMALES
      PROYECTO 3: NÚMEROS DECIMALES
      Without background sound

       

      1. En el cuaderno, realiza la descomposición de estos números decimales como en el ejemplo. 

      23,254 = 2 D + 3 U + 2 d + 5 c + 4 m = 20 + 3 + 0,2 + 0.05 + 0,004 

      a) 38, 93
      b) 327,981
      c) 7,03
      d) 803,09
      e) 0,903
      f) 345,744

      Done
      COMPONER Y DESCOMPONER NÚMEROS DECIMALES
      PROYECTO 3: NÚMEROS DECIMALES
      Without background sound

       

      1. Escribe los números que están compuestos por:  

      a) Cinco unidades, dos décimas y seis centésimas.

      b) Una decena, cuatro unidades y ocho centésimas. 

      c) Nueve decenas, nueve décimas y ocho milésimas. 

      d) Dos unidades, una décima y seis centésimas. 

      e) Un millar, una decena, una décima y una milésima. 

      f) Cuatro centenas y dos milésimas. 

        5,26 400,002 1010,101 90,908 2,16 14,08

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