5 Blue Maths Challenges

5 Blue, this week I would like you to have a go and completing these challenges in your books/blog.

Challenge 2 – Which one doesn’t belong? Have a look at each picture and explain on the blog which one is the odd one and why? There will be more than one answer for each picture.

19 responses to “5 Blue Maths Challenges”

  1. Zahra N.

    1. The Pentagon is the odd one out because it has 5 sides and the rest have 6 5 is an odd number and 6 is an even number.
    2. The number 121,73,9 are the odd ones out because they are odd numbers.
    3. The circle that is split into 3 parts is the odd one out because that has 3 split parts and the rest have 8 split parts.
    4. C is the odd one out because it is showing counters in the number 5 and 5 is an odd number that is why C is the odd one out.

  2. Vaneza S.

    1)The pentagon because it has 5 sides and the others have 6.
    2)16 because 16 is the only the even number.
    3)The third one because it has only 3 parts and the others have 8.
    4)D is the odd one out because it is shown in numbers.

  3. Izaan Q.

    1. The pentagon is odd because in this group of shapes, all the other shapes have six sides but the pentagon has five sides.

    2. The number sixteen is odd as it is an EVEN number.

    3. The circle with eight equal parts is odd because all the other shapes have only 1 equal side shaded in.

    4. I think that the C calculation is odd because it is the only one showing 2 add 3 calculations together when the others show 4 add 1 calculation.

  4. Muhammad Y.

    The pentagon is the odd one out because all the other shapes have 6 sides. 16 is the odd one out because it can be divided by 2 and the rest can’t because they leave remainders.(working out in book)
    The 1/3 circle is the odd one out because it is split into three meanwhile the rest are spilt into 8.I think B is the odd one out because there is 1 yellow counter representing 10 and it makes 14 not 5.D is odd as well because it shows as an number sentence and the others show fingers and counters.

  5. Mohammed D.

    1) The pentagon is the odd one out as the others have 6 sides but the pentagon only has 5 sides.
    2) 73 is the odd one out as the rest are multiples of 11, 8,3 whereas 73 is a prime number and the other numbers are not.
    3) The 3rd shape as the rest can be divided into eighths and the 3rd shape can only be divided into 3.
    4) The 3rd is the odd one out because it shows 3 and 2 but the others show 4 and 1.

  6. Aiza B.

    The pentagon is the odd one out because it has five side while the others have six sides.
    Nine is the odd one out because it is the only one from the nine times tables.
    The one third is the odd one out because the other one have eight as the denominator not this one .
    D is the odd one out because it is the only one that shows addition while the other don’t.

  7. Khadijah M.

    1)The pentagon since it has 5 sides.
    2)16 because it is the only even number.
    3)The one with 3 pieces shaded is the odd one out
    4)D is the odd one out because it is shown in numbers.

  8. Adam D.

    1) The pentagon is the odd one out because it has 5 sides but all the others have 6 and the 2nd one is odd because its the only shape with at least one right angle
    2) Number 9 is odd because its the only number with one digit, number 16 is odd because its the only even number and number 73 is odd because its the only prime number
    3) The 2nd is odd shape since its the only square and the 3rd circle is odd since its the only one split into 3 parts instead of 8
    4) A is odd because its the only representation using hand signals and D is odd because its the only representation adding to 5

  9. Aryan M.

    1.The pentagon does not belong as it only has 5 sides.
    2.16 is the odd one out as it is even.
    3.The third one because its in 3 pieces while the rest are in 8.
    4.C is the odd one out as it shows 3+2 not 4 +1 like the other ones.

  10. Anish B.

    1. It’s the Pentagon with 5 sides, not 6
    2. 73 because it,s a prime number
    3. circle with 3 parts because it can not be split into 8 equal slices
    4. D because it’s the only one with + and is not practical

  11. Bethany P.

    1)the pentagon is the odd one out because it is the only shape there with 5 sides all the others have 6
    2)16 is the odd one out because it is the only even number out of 73,9 and 121
    3)the one split into 3 peices is the odd one out because the rest are split into 8 peices
    4)the odd one out is d because it is shown in numbers rather than counters or fingers

  12. Amina H.

    1)the odd one is the pentagon because the other ones have 6 side but this one doesn’t.
    2)the odd one is 73 because it is not in the time table but the other ones do.
    3)the odd one is the 3 one because the other one have 8 but this one doesn’t .
    4)c is the odd one because it is just 5 when the other are adding to make 5.

  13. Nihal P.

    Challenge 2
    1. The pentagon is the odd one out because it has 5 sides and the others have 6 sides.
    2. 16 is the odd one out because it is the only even number.
    3. The one with 3 pieces is the odd one out because the other shapes are split into 8s.
    4. C is the odd one out because it is showing 3+2 and the others are showing 4+1.

  14. Muazzan M.

    1.The pentagon is the odd one out because it has 5 sides and all the other ones have 6.
    2.121 73 and 16 are the odd ones out because they are not in the nine times table.
    3. Number three is the odd one out because all of the other ones have eight sides and number three has three sides.
    4.number four is the odd one out because it is the only one that is showing it in numbers but the others are practical.

  15. Afsa P.

    1. The pentagon with 5 sides is the odd one out because it has 5 sides unlike the other one which have six.
    2. 16 is the odd one out because it is the only the even number in that group of numbers.
    3. all the fractions are split into 3 parts which makes the blue circle the odd one out because that one is split into 8 pieces.
    4. D is the odd one out because the other ones are showing different ways on how to work it out but d is just written how to do it ( 4+1 )

  16. Inder S.

    A)The pentagon is the odd one out because it has 5 sides but all the other sides have 6 sides
    B) 73 ,121 and 16 are the odd one out because they don’t come in the 9 x table but 9 does come in the 9 times table
    C)The third one is the odd one out because all the other One’s have 8 pieces but it is split into 3piece
    D)d is the odd one out because it does not show how to calculate4+1 but all the other
    Ones show different ways to calculate 4+1.

  17. Myiesha S.

    1)The Pentagon is the odd one out.I know this because a Pentagon has 5 sides and the other shapes have 6 sides.
    2)The numbers 121,16 and 9 should belong beacuse they are composite numbers unlike 73 which is a prime number.
    3)The circle is the odd one out because it is only split in 3 equal parts not 8 which as the numbers remaining are split into the correct number which is 8.
    4)D is the odd one out because the rest are showing the number 5 in pictures but d just shows it in a number sentence.

  18. Dhiyashini S.

    1) The pentagon is the odd one out because it was the only shape with 5 sides and all the others have 6.
    2) 16 is the odd one out because it is the only number which is a even number ;all the others are odd.
    3)The circle split into 8 sections is the odd one out because all of the others are shaded so it represents to one part, but the circle is not.
    4) D is the odd one out because it is the only one to be represented with numbers ; one was represented with fingers and two of them are represented with counters, but they all show the number 5.

  19. Mopelola L.

    1. The orange shapes: The pentagon with 5 sides does not belong as it is the only one that does not have 6 sides.
    2. The numbers: 73 does not belong as it is the only prime number.
    3. The fractions: The one split into 3 parts does not belong as it is the only one not split equally into 8 pieces.
    4. D does not belong as it is the only sum. The rest are ways you can show 5 practically.

Leave a Reply