Can you use what you’ve found out to predict the number for four red and two green? Three Dice Age 7 to 11 Challenge Level: Choose four different digits from and put one in each box so that the resulting four two-digit numbers add to a total of Highest and Lowest Age 7 to 11 Challenge Level: Investigate the different numbers of people and rats there could have been if you know how many legs there are altogether! Think of a number, square it and subtract your starting number.
Domino Square Age 7 to 11 Challenge Level: This article builds on Jennie’s. Pick any ten numbers from the bags above so that their total is What is the greatest number of counters you can place on the grid below without four of them lying at the corners of a square? This challenge involves eight three-cube models made from interlocking cubes. Then we build around that red cube with blue cubes and so on. You could try for different numbers and different rules.
Multiply Multiples 2 Age 7 to 11 Challenge Level: Making Rectangles Age 7 to 14 Challenge Level: Display Boards Age 7 to 11 Challenge Level: How many extra pebbles are added each time? Here are three views of the cube. Age 5 to 7 Trial and Solvin at KS1 These lower primary tasks could all be tackled using a trial and improvement approach. Factor Lines Age 7 to 14 Challenge Level: Sealed Solution Age 7 to 11 Challenge Level: Nine-pin Triangles Age 7 to 11 Challenge Level: Number live Age 7 to 11 Challenge Level: Shape Draw Age 7 to 11 Challenge Porblem How many Zios and how many Zepts were there?
How do you know if your set of dominoes is complete? She gave the clown six coins to pay for it.
Cut four triangles from a square as shown in the picture. In how many different ways can you do it?
This task combines spatial awareness with addition and multiplication. The Zios have 3 legs and the Zepts have 7 legs.
To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks into everyday classroom practice. Jennie outlines different ways in which learners might get started on a task stage 1but it is once they have got going and are working on the problem stage 2 that children will be making use of their problem-solving skills.
In the aforementioned article, Jennie outlines four stages of the problem-solving process: Investigate and explain the patterns that you see from recording just the units digits of numbers in the times tables.
Can you go through this maze so that the numbers you pass add to solvingg ? Can you work out the arrangement of the digits in the square so that the given products are correct? Place four pebbles on the sand in the form of a square. Can you discover its value in each problem?
The numbers 1 – 9 may be used once and once only. Choose two of the numbers to multiply or divide, then mark your answer on the number line. Three Neighbours Age 7 to 11 Challenge Level: Always, Sometimes or Never? Can you put the numbers in the V shape so that both ‘arms’ have the same total?
solvinh Can you find the smallest number that lights up all four lights? The winner is the first to make the total Can you sketch triangles that fit in the cells in this grid? Counting Cards Age 7 to 11 Challenge Level: