Can you find any two-digit numbers that satisfy all of these statements?
Look at different ways of dividing things. What do they mean? How might you show them in a picture, with things, with numbers and symbols?
Each light in this interactivity turns on according to a rule. What happens when you enter different numbers? Can you find the smallest number that lights up all four lights?
Nearly all of us have made table patterns on hundred squares, that is 10 by 10 grids. This problem looks at the patterns on differently sized square grids.
In this activity, the computer chooses a times table and shifts it. Can you work out the table and the shift each time?
Play this game and see if you can figure out the computer's chosen number.
These eleven shapes each stand for a different number. Can you use the number sentences to work out what they are?
Can you complete this jigsaw of the multiplication square?
What do the numbers shaded in blue on this hundred square have in common? What do you notice about the pink numbers? How about the shaded numbers in the other squares?
These sixteen children are standing in four lines of four, one behind the other. They are each holding a card with a number on it. Can you work out the missing numbers?
I'm thinking of a number. My number is both a multiple of 5 and a multiple of 6. What could my number be?
On the planet Vuv there are two sorts of creatures. The Zios have 3 legs and the Zepts have 7 legs. The great planetary explorer Nico counted 52 legs. How many Zios and how many Zepts were there?