Monday, January 9, 2012

Christmas lights

Put a positive number in each light. Each number in the top row is a single digit. Each number not the top row is the sum of the numbers in the two lights just above it. The 2 red lights contain the same number, as do the 2 yellow lights, and the 2 green lights.

Write your answer on comments with your full name.

4 comments:

  1. Estefanía Ríder ReyesJanuary 10, 2012 at 5:07 PM

    Estefanía Ríder Reyes. 3º ESO B.
    La solución es:
    2 1 3 9 2
    3 4 12 11
    7 16 23
    23 39
    62

    ReplyDelete
  2. Mª Carmen Herrera BeurnioJanuary 11, 2012 at 8:10 PM

    Mª Carmen Herrera Beurnio.3º ESO B
    la solución del problema es:
    2 1 3 9 2
    3 4 12 11
    7 16 23
    23 39
    62

    ReplyDelete
  3. Carmen Hens Barrilero 3º ESO B
    La solución que a mí me da es:
    2 3 5 19 2
    5 8 24 21
    13 32 45
    45 77
    122

    ReplyDelete
  4. Estefanía, Paula (in paper) and Mª Carmen got the right answer. The only problem witth Carmen Hens solution is that "Each number in the top row is a single digit", but you have 19 which has two digits, but very well done anyhow.

    ReplyDelete

Los comentarios no se mostrarán hasta que no sean aprobados por el profesor.
Comments won't be shown before teacher moderation.