Addition worksheet missing numbers with answers - 3 levels of differentiation KS2 Year 3 4 5 6

Here is an addition worksheet pack I have created. I have put year 3, 4, 5, or 6 as it really depends on where your class are at and children's individual needs. In regard to the national curriculum, this would be aimed at year 4. It includes place value headings and the use of chilli challenge for children to select their own difficulty. Column addition with missing numbers. I hope you like it! Your feedback is always welcomed. Thank you.