I recently published a number grid (or number square) from 1 to 100 and today I am publishing a similar page, but for numbers from 0 to 99.
Number grids can be used in a wide variety of ways, and many patterns can be found. it shows clearly the pattwern of odd and even numbers as well as the patterns created by multiplying. For example, colour squares green that are multiples of 2; colour squares red that are multiples of 3 and colour squares green which are multiples of 4. Which squarea are coloured more than once? Why? etc.