We investigated how many cubes would be need to build a pyramid following a given pattern. We found out that each layer needed the number of the layer it was multiplied by itself to find out how many cubes were needed. For example, the 5th layer needed 25 cubes because 5 x 5 = 25.
We use hundreds, tens and ones base 10 cubes to help to visualise and understand place value.
Watch this video to remind yourself how to add using columns.
Watch this video to remind yourself how to do column subtraction.