Thursday 10 November 2016

Shape multiplication

Each shape represents a number between 0 and 12. Each shape is a different number.

Can you match a shape to a number? Can you explain how you know for certain?

Have a look at what others have said, this might help you.

19 comments:

  1. square=2 triangle=6 rectangle=3 isosceles triangle=0 oval=4 semi-circle=8 circle=12 hexagon=10 6 sided star=5 8 sided star=9 numbers 7 and 11 are left

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    1. Well done Reo for attempting the problem. So is Reo correct? How can you check?

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    2. 2x2x2=8 Square x Square x Square = semi circle
      2x4=8 Square x oval = semi circle
      3x4=12 Rectangle x oval = circle
      3x2=6 Rectangle x Square = triangle
      6x2=12 triangle x Square = circle
      2x2=4 Square x Square = oval
      3x3=9 rectangle x rectangle = 8 side star
      2x5=10 square x sided star = hexagon
      3x0 but 0 is not an isosceles triangle
      0x10=10
      Reo well done but remember an isosceles triangle has to have 3 sides but im not quite sure what you mean by 7 and 11 are left, can you explaion what you mean?

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  2. square=2 = so if there is 3 squares what does it equal to and the answer you get would be the answer to the semicircle
    semicircle= 8 triangle =6 diamond= 1 the other star=9 oval=4
    hexagon=10 circle=12 5 sided star=5 isosceles=0 rectangle=3
    if you use this system then you would find the missing numbers under the shapes

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    1. Super work Adeline. Can you explain a little more about how you worked these out? I can see that you used some answers to build up to work out others, but I'd love to hear how you did it!

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  3. First we started with the square, we knew that it couldn't be over two because 3x3=9x3=27 and 27 is over 12 so it had to be two. Next we knew that if four times two = eight so the semi-circle must be eight. We thought if the triangle can be 0 semi-circle time triangle it must = 0,so we did the easy one first so the harder one we could find out.

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    1. A logical approach to the question Selisa, good thinking. Did you find the solution for all the shapes?

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    2. Yes Mrs Williams we did find all of the shapes.We had to work very hard,we checked all of our answers when we finally finished,I hope that everyone has a good go at it and you never know if might find the answer. Ks2 good luck!
      Have a go at it,can you solve the problem?

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  4. Maybe you can look at how many sides the shapes have and then count your answer so rectangle plus rectangle equals star and the star has eight mini triangles.

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  5. Maybe it is 2x2x2=8 2x4=8 3x4=12 3x2=6 6x2=12 2x2=4 2x5=10
    The square is 2 the rectangle is 3 the oval is 4 the star is 5 the triangle is 6 to be continued

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  6. I really liked your answer ellie I think I will try that myself.

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  7. I think it is: 2 x 2 x 2 = 8 but that doesn't is made y first attention but I think I will try try the and calculate the rest but I think the first attention I done was good but I am not sure if it is right or not I think I have to double check it to see if it I s correct.

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  8. The square is 2 so the semi-circle is 8 because 2x2=4 and 4x2=8 because you know the square is 2 and the semi-circle is 8 you will have to find out what times by 2 will make 8. So because i know what the square and the semi-circle is i now know what the oval is because 2x4 is 8. To be continued...

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    1. the isosceles triangle is 0 because in the problem the other shape would of been the answer if the triangle was 1. The square has to be 3 because it cant be 1 or 2 because we have already used 2 and we have already used 4 it could be 5 but the purple star is 5 and the green star is 9 because 3x3 is 9. the hexagon is 10 because 5x2 is 10 (square times purple star)

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  9. I think the yellow diamond is 1 because when it was times by the rectangle the answer was the rectangle.Anything that is times 1 is itself.

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  10. I think the yellow diamond is 1 because when it was times by the rectangle the answer was the rectangle.Anything that is times 1 is itself.

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  11. We think that the triangle represents 0 and the diamond represents 1 .

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  12. The triangle is 0 and the square is 2 and the diamond is 1 and the oval is 4 and the half oval is 8

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  13. I think that the triangle is 6 because 3 times 2 is 6.

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