Currently viewing the tag: "Number patterns"
Xoli decorated a strip of 20 squares.
She painted a red dot on the corner on every second square
Then she put a blue cross on every third square.
Then she put a green triangle on every fourth square.
And she put a black square on every fifth square
So there was nothing […]
In the first square the boxes at the end of each row and the foot of each column give the result of multiplying the two numbers in that row or column.
Can you find 4 consecutive numbers to complete the second multiplication square in the same way?
Make up puzzles for your […]
Imagine this pattern of squares continuing on and on …
How do you find the coordinates of the centre of square 1 if you know that (0, 3), (3, 4), (4, 1) and (1, 0) are vertices?
What are the coordinates of the centre of the 20th square?
Imagine the sequence of […]
Ask a friend to hide a 5c coin in one hand and a 10c coin in the other without showing you which coin is in which hand. Then say to your friend:
“Multiply the amount of money in your left hand by 2 or 4 (whichever you like) and the amount of money in […]
Choose your number to start and shade it on the grid.
To go to another number you can either MULTIPLY BY 2 or SUBTRACT 5.
So if you start on 12, you can either shade 12 x 2 = 24 or 12 – 5 = 7
Choose any shaded number and carry on until […]
Click here to download the COUNTING TRIANGLES worksheet.
Click here for the Notes for Teachers.
Click here to download the COUNTING TRIANGLES poster
Start with the set of the twenty-one numbers 0 – 20.
Can you arrange these numbers into 7 subsets, each of three numbers, so that the totals of the three numbers in each subset make seven consecutive numbers?
For example, one subset adding up to 27 might be {0, 13, 14}. […]
Follow some numbers and see where they go.
The simple rule is: choose a number, add the digits together then multiply by 2 and then do the same again.
Suppose you start with 56 then you get 5+6 = 11 and 11 x 2 =22 so the next number is 22. Carry on and you […]
There are six numbers written in five different scripts.
Can you sort out which is which?
Write 51 in each script.
Click here for Notes for Teachers.
Click here for the WHICH SCRIPTS poster.
This activity was initially developed by SMILE (Secondary Mathematics Individualised Learning Experiment) by practising teachers in London in […]
In his grid, how many pairs of numbers can you find that add up to a multiple of 11?
Do you notice anything interesting?
Can you see a connection with the 11-hour clock?
Can you find all the pairs?
Could you convince someone that you haven’t […]
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