Year 5 and 6 Maths Championships 2020 (February 2020)
It was our Year 5 and 6 teams turn to journey to Belle Vue Primary School to take part in the annual maths championships. We were up against eight […]
It was our Year 5 and 6 teams turn to journey to Belle Vue Primary School to take part in the annual maths championships. We were up against eight other primary schools and had 6 rounds, each lasting 15 minutes, of hard questions to get through. The types of questions were very similar to the ones Year 3 and 4 did last week but much harder.
Our first round was called ‘Mystery Number’. The children were given 4 numbers and a target number to make. They had to use all 4 numbers to make that target number.
We had to make 17 with 12, 16, 6 and 14. You can do this by adding 16 and 14 to make 30 then dividing by 6 to get 5 and adding the 12. (16+14)/6 + 12.
Try making 53 with 1, 4, 5 and 12.
Round 2 was called ‘Suguru’. It looked like sudoku but was nothing like it. A rectangle was split into various cells. If the cell was only 1 square, number 1 went into it. If the cell was 2 squares, numbers 1 and 2 went into it. If the cell was 5 squares, numbers 1, 2, 3, 4 and 5 went into it. There were some numbers already in place but you couldn’t have the same numbers touching each other (diagonally or adjacent).the ones we tried got harder with bigger grids and more cells being added each time.
If you want to know more or have a go yourself have a look at them here. (If you get stuck on these, ask Mrs Round - she got every one right, even the really hard 4 mark questions!)
Our next round was called ‘WODB’ (Which One Doesn’t Belong). The children were given 4 different mathematical images or numbers and had to choose why each one could be the odd one out mathematically (and give a reason for it). We could all find at least one that could be the odd one out but finding all 4 was tough! Have a go at this one. We know that 5/3 is the only improper fraction. Why might the other fractions not belong?
Round 4 was ‘Shape Construction’. We had 8 matchsticks and had to use all of these to make a closed shape. 4 of the matchsticks had to be diagonal and 4 had to be horizontal or vertical. The first shape the children needed to make needed to have 5e diagonal and horizontal/vertical lines AND had to have 4 parallel lines, no right angles and more than 2 lines of symmetry (a standard octagon would work for this). This was Mrs Round and Mr Hughes’ attempt at a shape that had 8 matchsticks, was a closed shape, had 4 diagonal matchsticks, 4 horizontal or vertical matchsticks and had 3 pairs of parallel sides, one right angle and one line of symmetry:
‘What’s the Word?’ was our penultimate round. This was lots of maths words jumbled up. All we had to do was un-jumble the anagram and get the maths word. e.g. “cart it bonus” is a calculation word (subtraction). There were 12 number and calculation anagrams, 12 shape anagrams and 12 measures anagrams. Which ones could you work out?:
- grab ale
- plum tile
- vegan tie
- car of tin
- miller time
- peter time
- under the well
- milk or tee
- mary dip
- emmy trys
- pup raced liner
As always, Countdown was our last round. The children were given a target number and 6 numbers to make that number. We got 5 points for getting the number exactly or 2 points if you were within 5 of the target number. If you want to make 255 using 3 4 5 9 25 50 you could do 50 x 5 + (9-4).
How about making 546 with the numbers 1, 4, 5, 25, 50 and 75?
Have a go at Countdown yourself here.
We thoroughly enjoyed ourselves and even better than that, came first! This means that our Year 5 and 6 team are through to the finals in June!