Anson were the winners of an exciting Intergroup Junior Maths Challenge held earlier this month, with Hudson and Grenville runners up.

Pupils from Years 3 and 4 had a wide variety of puzzles to solve, using number, measure, shape and pure logic. There were practical activities in the classroom as well as investigations to do outside. In the final challenge, answering times-table questions against the clock, Oscar Holroyd scored 5 in 20 seconds to help Anson overtake Hudson by just one point.

Here are a few of the questions answered by these budding mathematicians:

a. How many sides has a 50p piece?

b. How many triangles can you make from 12 straws.

c. I add together two numbers and I get 14. The difference between the numbers is 6. What are the numbers?

d. This newspaper has 32 pages. How many pieces of paper is it made from?

e. If I put a pyramid on top of the cube, how many faces does the new solid have?

f. The number 21596 appears on a digital display. If I turn it upside down, what will the new number be?

g. This bag of sugar weighs 1 kg. Estimate how many kg Mr McKay weighs.

What is that number if I turn it upside down?

Answers: a. 7; b. 6; c. 4 and 10; d. 8; e. 9; f. 96512; g. 75


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