Exactly 195 digits have been used to number the pages in a book. How many pages does the book have?
Which is quicker, counting up to 30 in ones or counting up to 300 in tens? Why?
In this game, you can add, subtract, multiply or divide the numbers on the dice. Which will you do so that you get to the end of the number line first?
What numbers would you put on this number line as it goes under the sea level?
Imagine a pyramid which is built in square layers of small cubes. If we number the cubes from the top, starting with 1, can you picture which cubes are directly below this first cube?
